JPH09309138A - Extrusion molding die and measurement of lip opening - Google Patents

Extrusion molding die and measurement of lip opening

Info

Publication number
JPH09309138A
JPH09309138A JP8128231A JP12823196A JPH09309138A JP H09309138 A JPH09309138 A JP H09309138A JP 8128231 A JP8128231 A JP 8128231A JP 12823196 A JP12823196 A JP 12823196A JP H09309138 A JPH09309138 A JP H09309138A
Authority
JP
Japan
Prior art keywords
bolt
differential
control unit
shaft
extrusion molding
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
JP8128231A
Other languages
Japanese (ja)
Inventor
Masahiro Niiguchi
正博 新口
Hiroshi Tokuda
寛志 徳田
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP8128231A priority Critical patent/JPH09309138A/en
Publication of JPH09309138A publication Critical patent/JPH09309138A/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
    • B29C48/92—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
    • B29C2948/92009—Measured parameter
    • B29C2948/92076—Position, e.g. linear or angular
    • 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
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92361—Extrusion unit
    • B29C2948/92409—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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92571—Position, e.g. linear or angular
    • 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

Landscapes

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

Abstract

PROBLEM TO BE SOLVED: To make it possible to manufacture a sheet or a film with uniform thickness in a short time by providing a displacement meter which measures the movement of an inner bolt of differential bolts connected to a lip block. SOLUTION: Plural differential bolts are fitted, in the die width direction, to the lip block 2 of a die main body 1, and the inner bolt 3 of the differential bolts is fastened to the lip block 2 securely without looseness. In addition, the inner bolt 3 is pushed and pulled by rotating a motor 9 through a gear 10 and a driving shaft. Consequently, the lip block 2 is also moved. Thus it is possible to accurately measure the movement of the inner bolt 3, that is, the movement of the lip block 2 using the displacement meter 7 by pressing a shaft 5 running through a control unit 11 against the inner bolt 3 with the help of a spring 6.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、シート又はフイル
ムの製造時にリップ開度を精度よく検出する押出成形ダ
イ及びそのリップ開度の測定方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extrusion molding die for accurately detecting a lip opening when manufacturing a sheet or a film, and a method for measuring the lip opening.

【０００２】[0002]

【従来の技術】従来、シートまたはフイルムを成形する
にあたり、幅方向の微小な厚み斑を解消する手段とし
て、例えば押し引きボルト、ヒートボルト等の調整ボル
トを有しているフラットダイが用いられている。しか
し、従来のフラットダイは、リップの移動量を直接かつ
正確に測定する手段を有していないのが実状である。2. Description of the Related Art Conventionally, in forming a sheet or film, a flat die having adjusting bolts such as push-pull bolts and heat bolts has been used as a means for eliminating minute thickness unevenness in the width direction. There is. However, the conventional flat die does not have a means for directly and accurately measuring the amount of movement of the lip.

【０００３】かかるダイにおいて、幅方向の厚みが均一
であり、言い換えれば厚み斑の小さいフイルムを成形す
るには、オンラインまたはオフラインで、成形されたフ
イルムの厚みの斑を測定し、この厚み斑の悪い箇所に相
当する調整ボルトを作動させてリップ開度を調整し、厚
み斑を小さくすることを行ってきた。In such a die, in order to form a film having a uniform thickness in the width direction, that is, a film having a small thickness unevenness, the thickness unevenness of the formed film is measured online or offline, and the thickness unevenness is measured. We have been working to adjust the lip opening by operating the adjustment bolts corresponding to the bad parts to reduce the thickness unevenness.

【０００４】しかし、押し引きボルトや差動ボルト、あ
るいはヒートボルトにしてもバクラッシュやがたがある
ため、例えばボルトを１回転させても必ずしも１ピッチ
分だけリップ移動量が生じるとは限らず、また個々の調
整ボルトが同じ特性を持つとも限らない。そのため、フ
イルムの厚み斑測定と調整ボルトによるリップ開度調整
を何度も繰り返す必要があり、この間製品とならず、生
産性を低下させる原因となっている。However, since push-pull bolts, differential bolts, or heat bolts also have backlash or rattling, one rotation of the bolt does not necessarily produce a lip movement of one pitch. Also, the individual adjusting bolts do not necessarily have the same characteristics. Therefore, it is necessary to repeat the measurement of the film thickness unevenness and the adjustment of the lip opening degree by the adjusting bolt many times, and the product is not produced during this period, which causes a decrease in productivity.

【０００５】[0005]

【発明が解決しようとする課題】本発明は、上述の問題
を解消し、短時間で厚みの均一なシートまたはフイルム
を製造することを可能にする、リップブロックの正確な
移動量をオンラインでも検出できる押出成形ダイ及びそ
のリップ開度を測定する方法を提供することを目的とす
る。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems and makes it possible to produce a sheet or film of uniform thickness in a short time, and to detect the exact amount of movement of the lip block online. An object of the present invention is to provide an extrusion molding die that can be used and a method for measuring the lip opening of the die.

【０００６】[0006]

【課題を解決するための手段】本発明の目的は、本発明
によれば、 １．少くとも一方のリップブロックにリップ開度微調整
用の差動ボルトをダイ幅方向に複数設置しているフイル
ム押出成形のフラットダイであって、該リップブロック
に締結している差動ボルトの内側ボルトの移動量を測定
する変位計を設けたことを特徴とする押出成形ダイ。SUMMARY OF THE INVENTION The object of the present invention is to provide: A flat die of film extrusion molding in which at least one lip block is provided with a plurality of differential bolts for finely adjusting the lip opening in the die width direction, and the inside of the differential bolts fastened to the lip block. An extrusion molding die provided with a displacement gauge for measuring the amount of movement of a bolt.

【０００７】２．少くとも一方のリップブロックにリッ
プ開度微調整用の差動ボルトをダイ幅方向に複数設置し
ているフラットダイを用いてシート又はフイルムを押し
出し成形するとき、該リップブロックに締結している差
動ボルトの作動でリップ開度を調整するにあたり、該リ
ップ開度の調整量として該差動ボルトの内側ボルトの移
動量を変位計で測定することを特徴とする押出成形ダイ
のリップ開度の測定方法。[0007] 2. When a sheet or film is extruded using a flat die in which a plurality of differential bolts for finely adjusting the lip opening are installed in at least one lip block in the die width direction, the difference that is fastened to the lip block In adjusting the lip opening by the operation of the dynamic bolt, the displacement of the inner bolt of the differential bolt is measured by a displacement meter as the adjustment amount of the lip opening. Measuring method.

【０００８】によって達成される。Is achieved by

【０００９】以下に図面を用いた本発明を説明する。The present invention will be described below with reference to the drawings.

【００１０】図１は、本発明の一つの実施態様を示す押
出成形ダイの断面図である。図１において、１はダイ本
体、２はリップブロック、３は差動ボルトの内側ボル
ト、４は差動ボルトの外側ボルト、５はシャフト、６は
ばね、７は変位計、８は継手、９はモータ、１０は歯
車、１１は制御ユニットである。FIG. 1 is a cross-sectional view of an extrusion die showing one embodiment of the present invention. In FIG. 1, 1 is a die body, 2 is a lip block, 3 is an inner bolt of a differential bolt, 4 is an outer bolt of a differential bolt, 5 is a shaft, 6 is a spring, 7 is a displacement gauge, 8 is a joint, 9 Is a motor, 10 is a gear, and 11 is a control unit.

【００１１】図１には、ダイ本体１は押出成形ダイの半
分が示されている。このダイ本体１のリップブロック２
にはダイ幅方向に複数の差動ボルトが設置され、該リッ
プブロック２に差動ボルトの内側ボルト３が締結され、
がたなくしっかりと固定されている。差動ボルトの外側
ボルト４を、モータ９の回転を歯車１０及び伝動シャフ
トを介して回転させることで内側ボルト３が押し引きさ
れる。それによってリップブロック２も移動する。この
歯車は図示したすぐばかさ歯車のほかに、例えばまがり
ばかさ歯車、フェースギヤ、ねじ歯車等を用いることが
できる。制御ユニット１１の中を貫通しているシヤフト
５をばね６を用いて内側ボルト３に押し当てることによ
り、内側ボルト３の移動量、つまりリップブロック２の
移動量を変位計７を用いて正確に測定することが可能と
なる。また他の好ましい方法としては、ばね６の代りに
シャフト５を内側ボルト４にねじ込むことが考えられ
る。変位計７としては、例えば、差動トランス型変位
計、ダイヤルゲージのような接触式変位計、過電流式、
超音波式、レーザ（光学）式変位計のような非接触式変
位計などを用いることができる。In FIG. 1, the die body 1 is shown as one half of an extrusion molding die. Lip block 2 of this die body 1
, A plurality of differential bolts are installed in the die width direction, and an inner bolt 3 of the differential bolt is fastened to the lip block 2.
It is firmly fixed without rattling. The inner bolt 3 is pushed and pulled by rotating the outer bolt 4 of the differential bolt through the rotation of the motor 9 via the gear 10 and the transmission shaft. As a result, the lip block 2 also moves. In addition to the straight bevel gear shown in the figure, for example, a spiral bevel gear, a face gear, a screw gear and the like can be used as this gear. By pressing the shaft 5 penetrating through the control unit 11 against the inner bolt 3 using the spring 6, the movement amount of the inner bolt 3, that is, the movement amount of the lip block 2 is accurately measured using the displacement gauge 7. It becomes possible to measure. Another preferred method is to screw the shaft 5 into the inner bolt 4 instead of the spring 6. As the displacement meter 7, for example, a differential transformer type displacement meter, a contact type displacement meter such as a dial gauge, an overcurrent type,
A non-contact type displacement gauge such as an ultrasonic type or laser (optical) type displacement gauge can be used.

【００１２】この為、本発明には、好ましい態様とし
て、差動ボルトの背部に該差動ボルトの作動を自動制御
する制御ユニットを設置し、該制御ユニットの中にシャ
フトを貫通させ、該シャフトを該作動ボルトの内側ボル
トにバネで押し当てて該内側ボルトの移動に連動するよ
うにし、かつ該制御ユニットの外側にシャフトの移動量
を測定する変位計を設けたものや、差動ボルトの背部に
該差動ボルトの作動を自動制御する制御ユニットを設置
し、該制御ユニットの中にシャフトを貫通させ、該シャ
フトの一端を該差動ボルトの内側ボルトにねじ込み固定
し、かつ該制御ユニットの外側に該内側ボルトに連動す
るシャフトの移動量を測定する変位計を設けたものが含
まれる。Therefore, in a preferred embodiment of the present invention, a control unit for automatically controlling the operation of the differential bolt is installed at the back of the differential bolt, and the shaft is passed through the control unit, Of the differential bolt, which is provided with a displacement gauge for pressing the inner bolt of the actuating bolt with a spring to interlock with the movement of the inner bolt, and which measures the amount of movement of the shaft outside the control unit. A control unit for automatically controlling the operation of the differential bolt is installed on the back, a shaft is passed through the control unit, one end of the shaft is screwed and fixed to an inner bolt of the differential bolt, and the control unit is provided. And a displacement gauge that measures the amount of movement of the shaft that interlocks with the inner bolt is provided on the outside.

【００１３】本発明においては、さらに前記制御ユニッ
ト１１、この中を貫通させたシャフト５および変位計７
を１つの開度調整ユニットに構成し、該開度調整ユニッ
トと差動ボルトを着脱継手８、例えばスプライン継手で
締結することで、ダイ整備等で取付け、取外しを頻繁に
行う場合もその作業を１／５程度に短縮でき、短時間で
実施することができる。In the present invention, the control unit 11, the shaft 5 and the displacement gauge 7 which penetrate the control unit 11, are further provided.
Is configured as one opening adjustment unit, and the opening adjustment unit and the differential bolt are fastened with a removable joint 8, for example, a spline joint, so that the work can be performed even when the die is frequently installed and removed. It can be shortened to about 1/5 and can be carried out in a short time.

【００１４】本発明は、また、上述の押出成形ダイを用
いてシート又はフイルムを押し出し成形するとき、該リ
ップブロックに締結している差動ボルトの作動でリップ
開度を調整するにあたり、該リップ開度の調整量として
該差動ボルトの内側ボルトの移動量を変位計で測定する
ことを特徴とする押出成形ダイのリップ開度の測定方法
にある。この方法によると、リップ開度が直接かつ正確
に測定できるので、シートまたはフイルムの幅方向の厚
み斑を短時間に解消することができる。Further, according to the present invention, when a sheet or film is extruded using the above-mentioned extrusion molding die, the lip opening is adjusted by the operation of a differential bolt fastened to the lip block. A method for measuring a lip opening of an extrusion molding die is characterized in that a displacement gauge measures a moving amount of an inner bolt of the differential bolt as an adjustment amount of the opening. According to this method, since the lip opening can be directly and accurately measured, it is possible to eliminate uneven thickness in the width direction of the sheet or film in a short time.

【００１５】[0015]

【実施例】以下、実施例をもって本発明をさらに説明す
る。EXAMPLES The present invention will be further described below with reference to examples.

【００１６】［実施例１］図１に示す押出成形ダイを用
いてポリエチレンテレフタレートをシート状に溶融押出
し、シート状溶融物を回転冷却ドラムに密着させ急冷固
化してシートを製造した。その際、シートの幅方向の厚
み斑を測定し、厚み斑の悪い所に対応するリップ開度
を、リップブロックに設置された差動ボルトの外側ボル
ト４をモーター９の回転を歯車１０を介して回転させ、
それによる内側ボルト３の移動量、つまりリップブロッ
クの移動量を変位計７を用いて正確に測定して調整し
た。それにより、従来使用してきたリップブロックの移
動量を測定する機能が設置されておらず、しかも調整ボ
ルトにがたがあるダイを用いフイルムの厚み斑測定と調
整ボルトによる調整を何度も繰り返す場合に比して、調
整時間を１／２以下に短縮することができた。Example 1 Polyethylene terephthalate was melt-extruded into a sheet using the extrusion molding die shown in FIG. 1, and the sheet-shaped melt was brought into close contact with a rotary cooling drum to be rapidly cooled and solidified to produce a sheet. At that time, the thickness unevenness of the sheet in the width direction is measured, and the lip opening corresponding to the location where the thickness unevenness is bad is measured. The outer bolt 4 of the differential bolt installed on the lip block is rotated by the motor 9 via the gear 10. Rotate
The amount of movement of the inner bolt 3, that is, the amount of movement of the lip block, was accurately measured and adjusted using the displacement gauge 7. As a result, when the function to measure the amount of movement of the lip block, which has been used in the past, is not installed and the adjustment of the thickness of the film is repeated using a die with a loose adjustment bolt, the adjustment with the adjustment bolt is repeated many times. It was possible to reduce the adjustment time to 1/2 or less as compared with the above.

【００１７】[0017]

【発明の効果】本発明の押出成形ダイ及びこのリップ開
度の測定方法を用いることにより、従来のダイに比べ、
極めて短時間に精度良い厚み斑調整が可能となり、また
調整ユニットの着脱も容易であり、シートあるいはフイ
ルムの生産性向上が大幅に達成できる。EFFECT OF THE INVENTION By using the extrusion molding die of the present invention and the method for measuring the lip opening, compared with the conventional die,
Accurate thickness unevenness adjustment can be performed in an extremely short time, and the adjustment unit can be easily attached and detached, and the productivity of the sheet or film can be significantly improved.

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

【図１】本発明の一つの実施態様を示す押出成形ダイの
断面図である。1 is a cross-sectional view of an extrusion die showing one embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１．押出成形用ダイ本体 ２．リップブロック ３．差動ボルトの内側ボルト ４．差動ボルトの外側ボルト ５．シャフト ６．ばね ７．変位計 ８．スプライン継手 ９．モーター １０．歯車 １１．調整ユニット 1. Extrusion molding die body 2. Lip block 3. Inner bolt of differential bolt 4. Outer bolt of differential bolt 5. Shaft 6. Spring 7. Displacement meter 8. Spline joint 9. Motor 10. Gear 11. Adjustment unit

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】 少くとも一方のリップブロックにリップ
開度微調整用の差動ボルトをダイ幅方向に複数設置して
いるフイルム押出成形のフラットダイであって、該リッ
プブロックに締結している差動ボルトの内側ボルトの移
動量を測定する変位計を設けたことを特徴とする押出成
形ダイ。1. A flat die of film extrusion molding, wherein a plurality of differential bolts for finely adjusting the lip opening are installed in at least one lip block in the die width direction, and the flat die is fastened to the lip block. An extrusion molding die provided with a displacement gauge for measuring the movement amount of the inner bolt of the differential bolt. 【請求項２】 差動ボルトの背部に該差動ボルトの作動
を自動制御する制御ユニットを設置し、該制御ユニット
の中にシャフトを貫通させ、該シャフトを該差動ボルト
の内側ボルトにバネで押し当てて該内側ボルトの移動に
連動するようにし、かつ該制御ユニットの外側にシャフ
トの移動量を測定する変位計を設けた請求項１に記載の
押出成形ダイ。2. A control unit for automatically controlling the operation of the differential bolt is installed on the back of the differential bolt, a shaft is penetrated into the control unit, and the shaft is spring-loaded to the inner bolt of the differential bolt. The extrusion molding die according to claim 1, further comprising: a displacement gauge that presses with the pressure gauge to interlock with the movement of the inner bolt and that measures a movement amount of the shaft outside the control unit. 【請求項３】 差動ボルトの背部に該差動ボルトの作動
を自動制御する制御ユニットを設置し、該制御ユニット
の中にシャフトを貫通させ、該シャフトの一端を該差動
ボルトの内側ボルトにねじ込み固定し、かつ該制御ユニ
ットの外側に該内側ボルトに連動するシャフトの移動量
を測定する変位計を設けた請求項１に記載の押出成形ダ
イ。3. A control unit for automatically controlling the operation of the differential bolt is installed on the back of the differential bolt, a shaft is penetrated into the control unit, and one end of the shaft is an inner bolt of the differential bolt. The extrusion molding die according to claim 1, further comprising a displacement gauge that is screwed and fixed to the outside of the control unit, and that is provided outside the control unit to measure a movement amount of a shaft that interlocks with the inside bolt. 【請求項４】 制御ユニット、この中を貫通させたシャ
フトおよび変位計を１つの開度調整ユニットに構成し、
該開度調整ユニットと差動ボルトとを着脱継手で締結し
ている請求項２又は３に記載の押出成形ダイ。4. A control unit, a shaft and a displacement gauge that penetrate through the control unit are configured as one opening adjustment unit,
The extrusion molding die according to claim 2 or 3, wherein the opening adjustment unit and the differential bolt are fastened with a removable joint. 【請求項５】 少くとも一方のリップブロックにリップ
開度微調整用の差動ボルトをダイ幅方向に複数設置して
いるフラットダイを用いてシート又はフイルムを押し出
し成形するとき、該リップブロックに締結している差動
ボルトの作動でリップ開度を調整するにあたり、該リッ
プ開度の調整量として該差動ボルトの内側ボルトの移動
量を変位計で測定することを特徴とする押出成形ダイの
リップ開度の測定方法。5. When a sheet or film is extruded using a flat die in which a plurality of differential bolts for finely adjusting the lip opening are installed in at least one lip block in the die width direction, when the sheet or film is extruded, An extrusion molding die characterized in that, when the lip opening is adjusted by the operation of the differential bolt that is fastened, the displacement of the inner bolt of the differential bolt is measured by a displacement meter as the adjustment amount of the lip opening. How to measure the lip opening. 【請求項６】 差動ボルトの背部に該差動ボルトの作動
を自動制御する制御ユニットを設置し、該制御ユニット
の中にシャフトを貫通させ、該シャフトを該差動ボルト
の内側ボルトにバネで押し当てて該内側ボルトの移動に
連動するようにし、かつ該制御ユニットの外側に変位計
を設け、該リップ開度の調整量として該差動ボルトの内
側ボルトの移動量を該変位計で測定する請求項５に記載
の押出成形ダイのリップ開度の測定方法。6. A control unit for automatically controlling the operation of the differential bolt is installed on the back of the differential bolt, a shaft is penetrated into the control unit, and the shaft is spring-loaded to the inner bolt of the differential bolt. And a displacement gauge is provided outside the control unit, and the displacement of the inner bolt of the differential bolt is adjusted by the displacement gauge as an adjustment amount of the lip opening. The method for measuring the lip opening of the extrusion molding die according to claim 5, which is measured. 【請求項７】 差動ボルトの背部に該差動ボルトの作動
を自動制御する制御ユニットを設置し、該制御ユニット
の中にシャフトを貫通させ、該シャフトの一端を該差動
ボルトの内側ボルトにねじ込み固定し、かつ該制御ユニ
ットの外側に変位計を設け、該リップ開度の調整量とし
て該内側ボルトの移動量を該変位計で測定する請求項５
に記載の押出成形ダイのリップ開度の測定方法。7. A control unit for automatically controlling the operation of the differential bolt is installed on the back of the differential bolt, a shaft is penetrated into the control unit, and one end of the shaft is an inner bolt of the differential bolt. 6. A displacement gauge is provided on the outside of the control unit, and the displacement of the inside bolt is measured by the displacement gauge as an adjustment amount of the lip opening.
The method for measuring the lip opening degree of the extrusion molding die according to 1.
JP8128231A 1996-05-23 1996-05-23 Extrusion molding die and measurement of lip opening Pending JPH09309138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8128231A JPH09309138A (en) 1996-05-23 1996-05-23 Extrusion molding die and measurement of lip opening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8128231A JPH09309138A (en) 1996-05-23 1996-05-23 Extrusion molding die and measurement of lip opening

Publications (1)

Publication Number Publication Date
JPH09309138A true JPH09309138A (en) 1997-12-02

Family

ID=14979745

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8128231A Pending JPH09309138A (en) 1996-05-23 1996-05-23 Extrusion molding die and measurement of lip opening

Country Status (1)

Country Link
JP (1) JPH09309138A (en)

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WO2021027071A1 (en) * 2019-08-13 2021-02-18 永高股份有限公司 Method for manufacturing biaxially stretched pvc pipe
US11964418B2 (en) 2018-11-06 2024-04-23 Windmöller & Hölscher Kg Adjusting device and method for controlling an exit thickness of a nozzle exit gap of a flat film machine
US11964419B2 (en) 2018-11-06 2024-04-23 Windmöller & Hölscher Kg Method and device for controlling a thickness profile of a film web
US11999091B2 (en) 2018-05-16 2024-06-04 Windmöller & Hölscher Kg Method for automatically regulating the size of a slot of a nozzle assembly and control and/or regulation system
US12059833B2 (en) 2018-05-16 2024-08-13 Windmöller & Hölscher Kg Method for automatically regulating the size of a slot of a nozzle assembly and control and/or regulation system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11999091B2 (en) 2018-05-16 2024-06-04 Windmöller & Hölscher Kg Method for automatically regulating the size of a slot of a nozzle assembly and control and/or regulation system
US12059833B2 (en) 2018-05-16 2024-08-13 Windmöller & Hölscher Kg Method for automatically regulating the size of a slot of a nozzle assembly and control and/or regulation system
DE102018127673A1 (en) * 2018-11-06 2020-05-07 Windmöller & Hölscher Kg Method for the control of a nozzle gap of an outlet nozzle for a film web of a flat film machine
US11964418B2 (en) 2018-11-06 2024-04-23 Windmöller & Hölscher Kg Adjusting device and method for controlling an exit thickness of a nozzle exit gap of a flat film machine
US11964419B2 (en) 2018-11-06 2024-04-23 Windmöller & Hölscher Kg Method and device for controlling a thickness profile of a film web
US12083731B2 (en) 2018-11-06 2024-09-10 Windmöller & Hölscher Kg Method for controlling a nozzle slot of a discharge nozzle for a film track of a flat film machine
WO2021027071A1 (en) * 2019-08-13 2021-02-18 永高股份有限公司 Method for manufacturing biaxially stretched pvc pipe

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