JPH066903Y2 - Film forming die - Google Patents
Film forming dieInfo
- Publication number
- JPH066903Y2 JPH066903Y2 JP1988101732U JP10173288U JPH066903Y2 JP H066903 Y2 JPH066903 Y2 JP H066903Y2 JP 1988101732 U JP1988101732 U JP 1988101732U JP 10173288 U JP10173288 U JP 10173288U JP H066903 Y2 JPH066903 Y2 JP H066903Y2
- Authority
- JP
- Japan
- Prior art keywords
- thermal expansion
- forming die
- expansion mechanism
- temperature
- slit
- 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.)
- Expired - Lifetime
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 18
- 238000005485 electric heating Methods 0.000 claims description 14
- 239000003345 natural gas Substances 0.000 claims description 10
- 230000000630 rising effect Effects 0.000 claims description 5
- 239000002904 solvent Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 102100027340 Slit homolog 2 protein Human genes 0.000 description 3
- 101710133576 Slit homolog 2 protein Proteins 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は合成樹脂シート状物、又は薄膜の成形装置にお
ける製膜用口金の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of a die for forming a synthetic resin sheet or a thin film forming apparatus.
（従来技術） 一般に、合成樹脂シート状物、又は薄膜の成形装置にお
いては、厚さ精度を良くするため、成形装置に組み込ま
れた厚さ測定器によって幅方向の厚さを検出し、溶液を
吐出する口金部にフイードバックすることにより、口金
の溶液吐出スリット間隙が調節されている。(Prior Art) Generally, in a molding device for a synthetic resin sheet or a thin film, in order to improve the thickness accuracy, the thickness in the width direction is detected by a thickness measuring instrument incorporated in the molding device to form a solution. The solution discharge slit gap of the die is adjusted by feeding back to the die part for ejection.
該スリット間隙の微調節機構としては、第３図に示すよ
うな、口金本体１に溶液吐出用のスリット２が穿設さ
れ、該スリット２の幅方向に所定の間隙をもって複数本
の間隙調節用ボルト３が螺着されていると共に、間隙調
節用ボルト３に電熱線等の電気加熱体４が装着された構
成のものが提案されている。As a mechanism for finely adjusting the slit gap, as shown in FIG. 3, a slit 2 for ejecting a solution is formed in a die body 1, and a plurality of gap adjusting holes are provided with a predetermined gap in the width direction of the slit 2. A structure in which the bolt 3 is screwed and an electric heating body 4 such as a heating wire is attached to the gap adjusting bolt 3 has been proposed.
一方、口金のスリットから吐出される溶液の多くは、溶
媒を使用して溶融されており、該溶媒の発火点は上述の
間隙調節用ボルトを熱膨張させる電気加熱体の発熱部の
温度より低い場合が多い。On the other hand, most of the solution discharged from the slit of the die is melted by using a solvent, and the ignition point of the solvent is lower than the temperature of the heat generating part of the electric heating body that thermally expands the gap adjusting bolt described above. In many cases.
考案が解決しようとする課題 そのため、溶液がスリット２から吐出され、溶液中の溶
媒が気化されてガス体となり、口金の近傍は該ガス体の
高濃度の雰囲気になる。そして、該ガス体が電気加熱体
４のある位置に達し、該電気加熱体４が該ガス体の発火
点以上になつている場合にはガス体は着火炎上する。
又、大気とガス体の混合比が爆発限界を越えている場合
には爆発炎上を引き起こすという問題がある。そのた
め、間隙調節用ボルトに電熱ヒータを装着した構成のも
のは未だ実用化されるには至っていない。Therefore, the solution is discharged from the slit 2, the solvent in the solution is vaporized to become a gas body, and the vicinity of the die becomes a high-concentration atmosphere of the gas body. When the gas body reaches a certain position of the electric heating body 4 and the electric heating body 4 is above the ignition point of the gas body, the gas body ignites and ignites.
Further, when the mixing ratio of the atmosphere and the gas body exceeds the explosion limit, there is a problem of causing an explosion flame. Therefore, the structure in which the electrothermal heater is mounted on the gap adjusting bolt has not yet been put into practical use.
（目的） 本考案は間隙調節用ボルトに電気加熱体を装着した構成
のスリット間隙微調節機構を有する製膜用口金における
発火、あるいは爆発現象等の発生を防止し、安全に吐出
作業ができるようにするものである。(Purpose) The present invention prevents ignition or explosion phenomenon in a film forming die having a slit gap fine adjustment mechanism in which an electric heating element is attached to a gap adjusting bolt, and enables safe discharge work. It is something to do.
（問題点を解決するための手段） 上述の課題を決するために本考案の製膜用口金は、熱膨
張機構により溶液吐出用スリットの幅方向におけるスリ
ット間隙を微調節する製膜用口金において、前記熱膨張
機構の昇温部をシール部材によって外部雰囲気ガスから
遮蔽せしめると共に、前記遮蔽された熱膨張機構の昇温
部に所定温度の非自然性ガス体を供給せしめるようにし
てある。(Means for Solving Problems) In order to solve the above problems, the film-forming die of the present invention is a film-forming die that finely adjusts the slit gap in the width direction of the solution discharge slit by a thermal expansion mechanism. The temperature rising part of the thermal expansion mechanism is shielded from the external atmosphere gas by a seal member, and the temperature rising part of the shielded thermal expansion mechanism is supplied with a non-natural gas body of a predetermined temperature.
又、請求項２のような外部雰囲気ガスから遮蔽された熱
膨張機構の昇温部に所定温度の非自然性ガス体を供給せ
しめると共に、昇温部の非自然性ガス体を排出せしめる
構成にするのが好ましい。According to a second aspect of the present invention, a non-natural gas body having a predetermined temperature is supplied to the temperature raising section of the thermal expansion mechanism shielded from the external atmosphere gas, and the non-natural gas body of the temperature raising section is discharged. Preferably.
さらに、請求項３のような熱膨張機構を、スリット間隔
を調節する螺子体と、該螺子体に装着された電気発熱体
とにより構成するのが好ましい。Further, it is preferable that the thermal expansion mechanism according to the third aspect is constituted by a screw body for adjusting a slit interval and an electric heating element mounted on the screw body.
（実施例） 本考案の製膜用口金の構成を図面に基づいて説明する。(Example) The structure of the film-forming die of the present invention will be described with reference to the drawings.
本考案の製膜用口金におけるスリット間隙微調節機構部
の構成は、第３図に示す従来のスリット間隙微調節機構
と同一であり、電気加熱体４の装着部（発熱部）を大気
と遮蔽するためのシール部材５を口金本体１に取付けた
ものであり、パッキン等を介して取付ける。又、電気発
熱体４の電線引込み部にはシール材を充填して気密を保
持させる。上述のシール部材５は口金本体１の温度変化
による寸法変化に容易に対応できる形状、材質にする必
要がある。The structure of the slit gap fine adjustment mechanism portion in the film-forming die of the present invention is the same as the conventional slit gap fine adjustment mechanism shown in FIG. 3, and the mounting portion (heat generating portion) of the electric heater 4 is shielded from the atmosphere. A sealing member 5 for doing so is attached to the base body 1, and is attached via packing or the like. Further, the electric wire drawing portion of the electric heating element 4 is filled with a sealing material to maintain airtightness. The above-mentioned seal member 5 needs to have a shape and material that can easily cope with dimensional changes due to temperature changes of the base body 1.
又、さらに安全性を高めるため、第２図に示すように供
給用管６、及び排出用管７をシール部材５に取付け、自
然性の無い窒素ガス、炭酸ガス等のガス体を供給する
と、溶媒の気化ガス体、あるいは揮発物質が電気発熱体
４部に侵入するのを完全に防止することができる。これ
等の管の取付け位置、数等はスリット幅によって適宜決
定する。又、非自然性ガス体の温度、及び供給量等は口
金本体１の温度、電気発熱体４の温度等によって決定す
る。Further, in order to further enhance the safety, if the supply pipe 6 and the discharge pipe 7 are attached to the seal member 5 as shown in FIG. 2 and a non-natural gas such as nitrogen gas or carbon dioxide gas is supplied, It is possible to completely prevent the vaporized gas substance of the solvent or the volatile substance from entering the electric heating element 4. The mounting position, the number, etc. of these tubes are appropriately determined by the slit width. Further, the temperature of the non-natural gas body, the supply amount and the like are determined by the temperature of the base body 1, the temperature of the electric heating element 4 and the like.
上述の実施例においては供給用管６と排出用管７を取付
けたが、供給用管６だけでも十分である。又、これ等の
管は口金本体１に取付け電熱ヒータ４部に供給すること
もできる。Although the supply pipe 6 and the discharge pipe 7 are attached in the above-described embodiment, the supply pipe 6 alone is sufficient. Further, these tubes can be attached to the base body 1 and supplied to the electric heater 4 part.
（考案の効果） 本考案の製膜用口金は請求項１のように熱膨張機構によ
り溶液吐出用スリットの幅方向におけるスリット間隙を
微調節する製膜用口金において、前記熱膨張機構の昇温
部をシール部材によって外部雰囲気ガスから遮蔽せしめ
ると共に、前記遮蔽された熱膨張機構の昇温部に所定温
度の非自然性ガス体を供給せしめるようにしてあるた
め、スリットから吐出された溶液の溶媒が気化してガス
体になっても、該ガス体が熱膨張機構の昇温部に侵入す
ることがなく、発火あるいは爆発現象等が発生するのを
防止することができる。そのため、完全に吐出作業を行
なうことができる。又、熱膨張機構の昇温部に供給する
非自燃性ガス体の温度が変更できるため、冷却条件を任
意に設定することができる。さらに、溶液の揮発物質が
電気発熱体に付着しないため、電気発熱体の劣化を防止
することができる。(Effect of the Invention) In the film-forming die of the present invention, in the film-forming die in which the slit gap in the width direction of the solution discharge slit is finely adjusted by the thermal expansion mechanism as in claim 1, the temperature of the thermal expansion mechanism is increased. The part is shielded from the external atmosphere gas by the seal member, and the non-natural gas body of a predetermined temperature is supplied to the temperature rising part of the shielded thermal expansion mechanism, so that the solvent of the solution discharged from the slit. Even if the gas is vaporized into a gas body, the gas body does not enter the temperature rising portion of the thermal expansion mechanism, and it is possible to prevent the ignition or the explosion phenomenon from occurring. Therefore, the discharge work can be performed completely. Further, since the temperature of the non-self-combustible gas body supplied to the temperature raising section of the thermal expansion mechanism can be changed, the cooling condition can be set arbitrarily. Furthermore, since the volatile substances of the solution do not adhere to the electric heating element, deterioration of the electric heating element can be prevented.
又、請求項２のように熱膨張機構の昇温部に所定温度の
非自燃性ガス体を供給せしめると共に、昇温部の非自然
性ガス体を排出せしめるようにすると、シール部材等を
より効率良く冷却することができる。Further, when the non-self-combusting gas body of a predetermined temperature is supplied to the temperature raising portion of the thermal expansion mechanism and the non-natural gas body of the temperature raising portion is discharged as in claim 2, the sealing member and the like can be further improved. It can be cooled efficiently.
さらに、熱膨張機構を、スリット間隔を調節する螺子体
と、該螺子体に装着された電気発熱体により構成する
と、スリットの間隙調節部をコンパクトにするとができ
る。Further, if the thermal expansion mechanism is composed of a screw body for adjusting the slit spacing and an electric heating element mounted on the screw body, the slit gap adjusting portion can be made compact.
第１図は本考案の製膜用口金の１実施例を示す概略断面
図である。 第２図は本考案の他の実施例を示す概略拡大断面図であ
る。 第３図は従来の製膜用口金の１実施例を示す概略断面図
である。 １：口金本体、２：スリット、 ３：間隙調節用ボルト、４：電気加熱体、 ５：シール部材、６：供給用管、 ７：排出用管、FIG. 1 is a schematic sectional view showing one embodiment of the film-forming die of the present invention. FIG. 2 is a schematic enlarged sectional view showing another embodiment of the present invention. FIG. 3 is a schematic sectional view showing one embodiment of a conventional film-forming die. 1: Body of base, 2: Slit, 3: Bolt for adjusting gap, 4: Electric heating element, 5: Seal member, 6: Pipe for supply, 7: Pipe for discharge,
Claims (3)
方向におけるスリット間隙を微調節する製膜用口金にお
いて、前記熱膨張機構の昇温部をシール部材によって外
部雰囲気ガスから遮蔽せしめると共に、前記遮蔽された
熱膨張機構の昇温部に所定温度の非自然性ガス体を供給
せしめるようにしたことを特徴とする製膜用口金。1. A film-forming die in which a thermal expansion mechanism finely adjusts a slit gap in the width direction of a solution discharge slit, and a temperature-increasing portion of the thermal expansion mechanism is shielded from an external atmosphere gas by a seal member, and A film forming die, wherein a non-natural gas body having a predetermined temperature is supplied to the temperature rising portion of the shielded thermal expansion mechanism.
の昇温部に所定温度の非自然性ガス体を供給せしめると
共に、昇温部の非自然性ガス体を排出せしめるようにし
たことを特徴とする請求項１の製膜用口金。2. A non-natural gas body having a predetermined temperature is supplied to a temperature raising section of a thermal expansion mechanism shielded from external atmosphere gas, and the non-natural gas body of the temperature raising section is discharged. The film forming die according to claim 1.
子体と、該螺子体に装着された電気発熱体により構成さ
れていることを特徴とする請求項１又は２の製膜用口
金。3. The film-forming die according to claim 1, wherein the thermal expansion mechanism is composed of a screw body for adjusting a slit interval and an electric heating element mounted on the screw body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988101732U JPH066903Y2 (en) | 1988-07-29 | 1988-07-29 | Film forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988101732U JPH066903Y2 (en) | 1988-07-29 | 1988-07-29 | Film forming die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0222816U JPH0222816U (en) | 1990-02-15 |
| JPH066903Y2 true JPH066903Y2 (en) | 1994-02-23 |
Family
ID=31330997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988101732U Expired - Lifetime JPH066903Y2 (en) | 1988-07-29 | 1988-07-29 | Film forming die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066903Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3427912C1 (en) * | 1984-07-28 | 1986-03-06 | Reifenhäuser GmbH & Co Maschinenfabrik, 5210 Troisdorf | Extrusion unit for the extrusion of thermoplastic |
| JPS61261022A (en) * | 1985-05-15 | 1986-11-19 | Teijin Ltd | Manufacture of polymer film |
| JPS6225527U (en) * | 1985-07-31 | 1987-02-17 |
-
1988
- 1988-07-29 JP JP1988101732U patent/JPH066903Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0222816U (en) | 1990-02-15 |
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