JPS5829623A - Thickness regulator of die for extruding sheet - Google Patents

Thickness regulator of die for extruding sheet

Info

Publication number
JPS5829623A
JPS5829623A JP56127948A JP12794881A JPS5829623A JP S5829623 A JPS5829623 A JP S5829623A JP 56127948 A JP56127948 A JP 56127948A JP 12794881 A JP12794881 A JP 12794881A JP S5829623 A JPS5829623 A JP S5829623A
Authority
JP
Japan
Prior art keywords
sheet
thickness
tie
pressure
die
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
JP56127948A
Other languages
Japanese (ja)
Inventor
Kazuhiko Nemoto
根本　一彦
Tetsuya Oguchi
哲哉 大口
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP56127948A priority Critical patent/JPS5829623A/en
Publication of JPS5829623A publication Critical patent/JPS5829623A/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
    • B29C2948/92019—Pressure
    • 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
    • B29C2948/92114—Dimensions
    • B29C2948/92152—Thickness
    • 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
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92428—Calibration, after-treatment, or cooling 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
    • B29C2948/92609—Dimensions
    • B29C2948/92647—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE:To obtain the titled thickness regulator, by adjusting the die gap of dies for extruding a sheet in response to the thickness of the sheet detected at the die lips thereby eliminating the lag in the time for regulating the sheet thickness due to the change in the thickness so as to make the thickness of the sheet uniform. CONSTITUTION:When a sheet 2 passes between pressure sensors 4, 4 provided at the die lips, the pressure sensors 4, 4 sense the pressure from the sheet 2. By this detection of the pressure, the thickness of the sheet 2 is measured, and the thickness regulating means 5 such as a bolt, or a choke bar is driven to adjust the gap between the dies 1, 1 in accordance with the thickness of the sheet 2.

Description

【発明の詳細な説明】 本発明はシート押出用タイの厚み調節装置、さらに詳し
くは一対のタイで構成され両タイ間からシートを押出す
シート押出用タイのタイ開隔を調節してシートの厚みを
調節する厚み調節装置ｉｄ（に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thickness adjusting device for a sheet extrusion tie, and more specifically, a thickness adjustment device for a sheet extrusion tie. Relating to a thickness adjustment device id that adjusts thickness.

従来のこの種の厚み調節装置にあっては、シー１−の厚
みをマイクロメータで測定する方法や第１図のように赤
外線センサなどの厚み測定機−を用いて厚みを測定する
方法が用いられていたものである。前者のものにあって
は、シート（２）の厚みを連に６ａして測定することが
できず、シート（２）の厚みの変化に対応する時間が遅
れ、しかも精度も悪いものであった。また、後者のもの
にあっては、押出用タイ（３）のタイリップ　と厚み測
定機−とが離れて配置されているものであるから、厚み
測定機−でシート（２）の厚みの変化を検出するときに
はタイリップ　から厚み測定機−までの間のシート（２
）ｌｄ、既にシー１−（２＋の厚みが変化しているもの
であって、このものにあってもシート２）の厚み変化に
対応する時間が遅れるものであった。Conventional thickness adjustment devices of this type use a method of measuring the thickness of the seam 1 with a micrometer or a method of measuring the thickness with a thickness measuring device such as an infrared sensor as shown in Figure 1. It used to be. In the former method, it was not possible to measure the thickness of the sheet (2) in series, and the time required to respond to changes in the thickness of the sheet (2) was delayed, and the accuracy was also poor. . In addition, in the latter case, the tie lip of the extrusion tie (3) and the thickness measuring device are placed apart, so the thickness measuring device measures changes in the thickness of the sheet (2). When detecting, the sheet between the tie lip and the thickness measuring machine (2
)ld, the thickness of sheet 1-(2+) has already changed, and even in this case, the time to respond to the change in the thickness of sheet 2 was delayed.

本発明は上述のような欠点を解消すべく為されたもので
あって、その主な目的とするところは、タイリップでシ
ートの厚み測定をすることにより、シートの厚みの変化
に対応する時間の遅れをなくシ、均一な厚みのシートを
成形することにある以下、本発明の実施例を図面にノ１
（づいて説り−１する。本発明に係るシート押出用タイ
の厚み調節装置は、一対のタイｆｌｌ　ｉｌｌで構成さ
れ両タイｉｌｌ　ｆｌ）聞からシート（２）全押出すシ
ート押出用タイ（３）と、シート押出用タイ（３）のタ
イリップにシート（２）の厚み方向の両側に対応する位
置で配設された圧力センサ（４）と、圧力センサ（４）
へシート（２）より加わる圧力を検出することにより測
定されるシート（２）の厚みに対応して両タイｉｌｌ　
（１＋の間隔ｋ　ＭＩ４節する厚み調節手段（６１とか
ら成るものであって、本実施例にあっては、シート（２
）の厚みが自動１ｉＩＡＩ節される例を示す。The present invention has been made to solve the above-mentioned drawbacks, and its main purpose is to measure the thickness of the sheet with a tie lip, thereby determining the time required to respond to changes in sheet thickness. The purpose of this invention is to eliminate delays and form sheets of uniform thickness.
(I will now explain - 1. The sheet extrusion tie thickness adjustment device according to the present invention is composed of a pair of ties, and the sheet (2) is completely extruded from between the two ties. 3), a pressure sensor (4) disposed on the tie lip of the sheet extrusion tie (3) at a position corresponding to both sides of the sheet (2) in the thickness direction, and a pressure sensor (4).
In response to the thickness of the sheet (2), which is measured by detecting the pressure applied from the sheet (2),
(1+ interval k MI4 section thickness adjustment means (61).
) is automatically calculated using 1iIAI.

第２図及び第８図に示すよ’）ＶＣ，押出機；６）より
押出された合成樹脂は一対のタイｆｉｌ　ｆｌ）で（Ｈ
成されるシート押出用タイ（３）の両タイｆｉｌ　＋１
＋間を通ってシート＋２１に形成される。両タイｆｌｌ
　ｆｉｌのタイリップＫｌま、圧力センサ゛（４）が夫
々配設される。圧カセ−７’ｊ　ｉ４）の受圧面はタイ
ＥｌｌＯ流面（７）と同−向上に形成される。しかるに
、タイリップに配設された肉圧カセンサ＋４）１４）間
をシート（２）が通過すると、圧力センサ（４）はシー
ト（２）より圧力を受ける。この圧力を検出することに
よりシート（２）の厚みが測定され、そのシーｌ−＋２
１の厚みに対応して両タイ（１）　ｆｌ）間隔を調節す
る４：ルトやチョークバーのような厚み調節手段（５）
を駆動するものである。厚み調節を一層厳密に行なうに
は、第８図に示すように、圧力センサ（４）の出力を演
算部（８）に入力し、演算部（８）の出力によって、厚
み調節手段（５）を駆動して両タイ（＋１　＋１＋の間
隔調節をする間隔制御部（９）、シート押出用タイ（３
）内に配設されるし−９にてシート押出用タイ（３）の
温度をＷ・４節［−シート（２）を形成する合成樹脂の
粘度を調節する温度制曲１部＋１０１　、押出機（６）
のスクリュー（１１）送り速度全調節する送り速度側ｆ
ｉｉ（１部（１２）、押出機（６）へのホッパθ榎から
の材料供給速度を調節する供給速度制御部（＋４）、シ
ート押出用タイ（３）よシ押出されたシート（２）ヲ送
り出す引出し０−ル（１荀の引出し比変を制御する引出
し速度制御部（１６）を夫々連動させればよいものであ
る。尚、上述の例では厚み調節全自動化したものである
が、精度をあまり必要としないときにはタイ（＋）間隔
を手で調節してもよいものである。As shown in Figures 2 and 8, the synthetic resin extruded from the VC and extruder;
Both ties fil +1 of the sheet extrusion tie (3) to be made
+ and is formed into sheet +21. Both ties full
A pressure sensor (4) is disposed on each tie lip Kl of the fil. The pressure receiving surface of the pressure cassette 7'j i4) is formed to have the same height as the tie EllO flow surface (7). However, when the sheet (2) passes between the meat pressure sensors (4) and (14) disposed on the tie lip, the pressure sensor (4) receives pressure from the sheet (2). By detecting this pressure, the thickness of the sheet (2) is measured, and the thickness of the sheet (2) is measured.
Adjust the spacing between both ties (1) fl) according to the thickness of item 1. 4: Thickness adjustment means such as a bolt or choke bar (5)
It is what drives the. In order to adjust the thickness more precisely, as shown in FIG. 8, the output of the pressure sensor (4) is input to the calculation section (8), and the thickness adjustment means (5) is The interval control section (9) drives the interval between both ties (+1 +1+), and the sheet extrusion tie (3
) The temperature of the tie (3) for sheet extrusion is set at W.4. Machine (6)
The screw (11) feed speed side f that fully adjusts the feed speed
ii (1 part (12), a feed speed control part (+4) that adjusts the material feed rate from the hopper θ to the extruder (6), a sheet extruded from the sheet extrusion tie (3) (2) The drawer speed control unit (16) that controls the drawer ratio change of each drawer to be fed out should be linked to each other.In addition, in the above example, the thickness adjustment is fully automated, When precision is not required, the tie (+) interval may be adjusted manually.

本発明は上述のように、シート押出用タイのタイリップ
に圧力ｔｖｙすを配設［７て、圧カセシリにシートより
加わる圧力を検出１−ることにより検出されたシートの
厚みに対応してシート押出用タイのタイ間隔全厚み調節
手段にて’Ｎｒ！ｌ＋ａｉ〕−ｐるので、シートの厚み
を決定するタイリップでシートの厚み測定が行なわれ、
シートにｐｙみ変化が起きると同時にその厚み変化に対
応することができ、厚み変化が起きてからその厚み変化
全検出する甘でのロスタイムがなく、シートの厚み変化
に迅速に対応して均一な厚みのシート金成形することが
できるという利点を有する０As described above, the present invention provides a pressure tvy on the tie lip of a sheet extrusion tie [7], detects the pressure applied by the sheet to the pressure cassette, and applies pressure to the sheet in accordance with the detected thickness of the sheet. 'Nr' with extrusion tie spacing and total thickness adjustment means! l+ai]-p, so the thickness of the sheet is measured using the tie lip that determines the thickness of the sheet.
It is possible to respond to the change in thickness at the same time that a change in thickness occurs in the sheet, and there is no loss time due to detecting the entire thickness change after the change in thickness has occurred, and it can quickly respond to changes in the thickness of the sheet to ensure uniformity. It has the advantage of being able to be formed into sheet metal with a thickness of 0.

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

第１図は従来例を示す概略構成図、第２図は本発明の一
実施例を示す概略構成図、第８図は同上の他の実施例の
構成図であり、（ｌ）けタイ、（２）はシート、（３）
はシート押出用タイ、（４）は圧力せりす、（５）は厚
み調節手段である。FIG. 1 is a schematic configuration diagram showing a conventional example, FIG. 2 is a schematic configuration diagram showing an embodiment of the present invention, and FIG. 8 is a configuration diagram of another embodiment of the same. (2) is a sheet, (3)
1 is a sheet extrusion tie, (4) is a pressure cirrus, and (5) is a thickness adjustment means.

Claims (1)

【特許請求の範囲】[Claims] ＋１）　　一対のタイで構成され両タイ間からシートを
押出すシート押出用タイと、シート押出用タイのタイリ
ッづにシートの厚み方向の両側に対応する位置で配設さ
れた圧カセンリと、圧力センサへシートより加わる圧力
を検出することにより測定されるシートの厚みに対応し
て両タイの四隅を調節する厚み調節手段とから成ること
全特故とするシート押出用タイの厚み調節装置１有。+1) A sheet extrusion tie that is composed of a pair of ties and extrudes the sheet from between both ties, a pressure sensor installed at a position corresponding to both sides of the sheet in the thickness direction of the tie of the sheet extrusion tie, and a pressure sensor that extrudes the sheet from between both ties. Thickness adjusting device for sheet extrusion ties (1) consisting of a thickness adjusting means for adjusting the four corners of both ties in accordance with the thickness of the sheet measured by detecting the pressure applied by the sheet to the sensor. .
JP56127948A 1981-08-14 1981-08-14 Thickness regulator of die for extruding sheet Pending JPS5829623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56127948A JPS5829623A (en) 1981-08-14 1981-08-14 Thickness regulator of die for extruding sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56127948A JPS5829623A (en) 1981-08-14 1981-08-14 Thickness regulator of die for extruding sheet

Publications (1)

Publication Number Publication Date
JPS5829623A true JPS5829623A (en) 1983-02-21

Family

ID=14972595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56127948A Pending JPS5829623A (en) 1981-08-14 1981-08-14 Thickness regulator of die for extruding sheet

Country Status (1)

Country Link
JP (1) JPS5829623A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4517145A (en) * 1983-11-07 1985-05-14 American Hoechst Corporation Extrusion die and process for thickness control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4517145A (en) * 1983-11-07 1985-05-14 American Hoechst Corporation Extrusion die and process for thickness control

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