JPS63256418A - Nozzle for preparing film - Google Patents
Nozzle for preparing filmInfo
- Publication number
- JPS63256418A JPS63256418A JP62090941A JP9094187A JPS63256418A JP S63256418 A JPS63256418 A JP S63256418A JP 62090941 A JP62090941 A JP 62090941A JP 9094187 A JP9094187 A JP 9094187A JP S63256418 A JPS63256418 A JP S63256418A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- discharge slit
- film
- flow channel
- flow path
- 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
Links
- 239000002994 raw material Substances 0.000 abstract description 11
- 238000011282 treatment Methods 0.000 abstract 4
- 238000004381 surface treatment Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
-
- 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)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ポリエステル、ポリプロピレン等の製膜装置
、特に製膜口金に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a film forming apparatus for polyester, polypropylene, etc., and particularly to a film forming die.
（従来の技術）
膜の原料は、溶融状態又は溶液として、配管によって口
金に導かれ、膜状にして排出する必要から、製膜用の口
金の中で膜の幅方向に拡げられる。(Prior Art) A raw material for a membrane is introduced into a die in a molten state or as a solution through piping, and is spread in the width direction of the membrane in the die for film formation because it needs to be discharged in the form of a film.
その流路は、膜の厚みを均一にする必要上、高い粘度が
、また異常な滞留を防止するために滑らかな表面を要求
され、−塊のブロックの中に形成することが困難なため
に、幾つかに分割されている。The flow path requires a high viscosity due to the need for uniform membrane thickness and a smooth surface to prevent abnormal stagnation - due to the difficulty of forming into blocks of agglomerates. , is divided into several parts.
従来例としては、第６図に示すように、口金を分割し、
ブロック９、ブロック９′の接触面に原料流路を設け、
締付ボルト（図示路）によって口金を構成している。As a conventional example, as shown in Fig. 6, the cap is divided into two parts,
A raw material flow path is provided on the contact surface of block 9 and block 9',
The cap is made up of a tightening bolt (path shown).
従って、合せ面が密着し、原料が洩出ざないようにする
ためには、ブロック９．９′の厚みを厚くし剛性を高め
ること、さらに溶融製膜では、高温、高圧の条件となる
ので、熱歪みにも十分配慮することが必要であった。Therefore, in order to ensure that the mating surfaces are in close contact and that the raw material does not leak out, the thickness of the blocks 9 and 9' must be increased to increase their rigidity.Furthermore, melt film forming requires high temperature and high pressure conditions. It was also necessary to give sufficient consideration to thermal distortion.
また、製膜の幅が広くなると、流入孔から排出スリット
までの距離も長くなり、口金は、大きく、重く、その製
造費用も高額であった。Furthermore, as the width of the membrane becomes wider, the distance from the inflow hole to the discharge slit also becomes longer, making the die larger and heavier, and the manufacturing cost thereof is also higher.
本発明の目的は、装置の小型化、並びに高精度で、かつ
滑らかな表面仕上加工がなされてなる製膜口金を提供す
ることにある。An object of the present invention is to provide a film-forming die that is compact in size and has a highly accurate and smooth surface finish.
本発明の製膜口金は、シリンダ１及び円柱２とよりなり
、シリンダ１に流入孔３及び排出スリット４が設けられ
、円柱２の周面に、流入孔３と排出スリット４とを連絡
する流路５が設けられ、シヘ リンダ１に円柱２が挿入
組立されていることを特徴とする。The film forming nozzle of the present invention consists of a cylinder 1 and a column 2. The cylinder 1 is provided with an inflow hole 3 and a discharge slit 4, and the cylinder 2 has an inflow hole 3 and a discharge slit 4 provided on its circumferential surface. It is characterized in that a channel 5 is provided, and a column 2 is inserted and assembled into the cylinder 1.
〔作用〕
膜の原料は、シリンダ１に設けられた流入孔３から送り
込まれ、次いで円柱２の周面に設けられた流路５に沿っ
て流れ、排出スリット４に至り、排出スリット４から膜
状に押出される。[Operation] The raw material for the membrane is fed through the inflow hole 3 provided in the cylinder 1, then flows along the flow path 5 provided on the circumferential surface of the cylinder 2, reaches the discharge slit 4, and flows through the discharge slit 4 into the membrane. It is extruded into a shape.
以下、本発明を実施例に基づいて説明する。 Hereinafter, the present invention will be explained based on examples.
第１図、第２図及び第３図は、本発明の一実施例を示す
。第１図は流入孔を含む部分の横断面図、第２図は流路
を含まない端部の横断面図、第３図は円柱周面の展開図
である。1, 2 and 3 show one embodiment of the invention. FIG. 1 is a cross-sectional view of the portion including the inflow hole, FIG. 2 is a cross-sectional view of the end portion not including the flow path, and FIG. 3 is a developed view of the cylinder circumferential surface.
第１図に示すように、この実施例では、シリンダ１の右
側面に流入孔３が設けてあり、下部に排出スリット４が
設けである。円柱２の周面には、流路５が設けられ、流
入孔３と排出スリット４を連絡している。流入孔３と排
出スリット４の位置は、この実施例に限定されるもので
なく、適宜選択しうる。流路５は、第３図に示すように
、流入孔３に対応する位置から排出スリット４に対応す
る位置まで、徐々に広がるように設けられている。As shown in FIG. 1, in this embodiment, an inflow hole 3 is provided on the right side of the cylinder 1, and a discharge slit 4 is provided at the bottom. A flow path 5 is provided on the circumferential surface of the cylinder 2 and communicates the inflow hole 3 and the discharge slit 4. The positions of the inflow hole 3 and the discharge slit 4 are not limited to this embodiment, and can be selected as appropriate. The flow path 5 is provided so as to gradually widen from a position corresponding to the inflow hole 3 to a position corresponding to the discharge slit 4, as shown in FIG.
この流路５の形状は、この実施例に限定されるものでは
ないが、はぼ扇形が好ましい。この実施例では、流路５
を円柱２の３／４円にとっているので、従来の製膜口金
に比べ、その高さは、約１／２に縮少されている。Although the shape of the flow path 5 is not limited to this embodiment, it is preferably a fan-shaped shape. In this example, the channel 5
is set to 3/4 of the cylinder 2, so its height is reduced to about 1/2 compared to a conventional film forming die.
第２図に示すように、流路５を含まない部分では、シリ
ンダ１と円柱２は完全に密着し、原料の漏洩がないよう
にしである。なお、両者の密着性を高めるためには、シ
リンダ１をある箇所で切開し、シリンダ１に円柱２を挿
入したあと、ボルト７で締付けてもよい。この実施例で
は、排出スリット４を設けた位置でシリンダ１を切開し
ている。As shown in FIG. 2, in the portion not including the flow path 5, the cylinder 1 and the column 2 are in complete contact with each other to prevent leakage of the raw material. In addition, in order to improve the adhesion between the two, the cylinder 1 may be cut out at a certain point, the cylinder 2 may be inserted into the cylinder 1, and then the bolt 7 may be tightened. In this embodiment, the cylinder 1 is cut open at the position where the discharge slit 4 is provided.
円柱２の外径よりもシリンダ１の内径を若干小さく製作
し、押しボルト等で拡げて組立てたあと、ボルト７で締
付けることにより、流路・５以外の円柱２の表面がシリ
ンダ１の、内面によりよく密着し、流路５以外のシール
が容易となる。By making the inner diameter of the cylinder 1 slightly smaller than the outer diameter of the cylinder 2, expanding it with push bolts, etc., and assembling it, tighten the bolt 7, so that the surface of the cylinder 2 other than the flow path 5 becomes the inner surface of the cylinder 1. This allows better adhesion and facilitates sealing of areas other than the flow path 5.
ざらに、この実施例では、排出スリット４に流路のつら
なるリップ６を設けている。リップ６を設けることによ
り、膜厚みの調整をより用意かつ精密にし得る。Roughly speaking, in this embodiment, the discharge slit 4 is provided with a lip 6 that is a continuous channel. By providing the lip 6, the film thickness can be adjusted more easily and precisely.
シリンダ１の外径は、必ずしも円柱状にする必要はない
が、円柱状にすれば、保温用ヒーターの密着が容易とな
り、温度を均一に保つことができる。Although the outer diameter of the cylinder 1 does not necessarily have to be cylindrical, if it is made cylindrical, the heat-retaining heater can be attached easily and the temperature can be kept uniform.
第４図は、２種類の原料をラミネートして複合フィルム
を製造するための製膜口金の実施例を示す。シリンダ１
には、２つの流入孔３，３′と１つの排出スリット４が
設けられ、円柱２の周面には、流入孔３から排出スリッ
ト４に至る流路５と、流入孔３′から排出スリット４に
至る流路５′が独立して設けである。FIG. 4 shows an example of a film forming die for manufacturing a composite film by laminating two types of raw materials. cylinder 1
is provided with two inflow holes 3, 3' and one discharge slit 4, and on the circumferential surface of the cylinder 2, there is a flow path 5 leading from the inflow hole 3 to the discharge slit 4, and a flow path 5 leading from the inflow hole 3' to the discharge slit 4. A flow path 5' leading to 4 is provided independently.
第５図は、排出スリット部を流れる原料を貫通して、該
スリットを引き寄せるボルトを設けることが不可能な製
膜口金の特徴から、膜幅の拡大に従って、不足するスリ
ット部の剛性を補う目的で剛性補強板８を設けた例を示
す。Figure 5 is intended to compensate for the lack of rigidity of the slit as the film width increases due to the characteristics of the film forming die that makes it impossible to install a bolt that penetrates the raw material flowing through the discharge slit and pulls the slit. An example in which a rigid reinforcing plate 8 is provided is shown below.
（１）本発明の製膜口金の製作は、シリンダの内面加工
、円柱の表面加工が主体となり、加工が容易な工作であ
るため、高精度と滑かな表面仕上加工が安価に実施でき
る。(1) The production of the film forming die of the present invention mainly involves processing the inner surface of the cylinder and the surface processing of the cylinder, and since the processing is easy, high precision and smooth surface finishing can be achieved at low cost.
（２）流入孔から排出スリットに連絡する原料流路を円
柱表面に巻き付けて施せるため、それを平面内に設けて
いる従来装置に比べ、装置を小型化できる。(2) Since the raw material flow path communicating from the inflow hole to the discharge slit can be wrapped around the cylindrical surface, the device can be made smaller compared to conventional devices in which it is provided in a plane.
（３）円柱のみを交換することにより、異なるプロフィ
ルの流路が与えられ、最適流路の検討が短期にかつ安価
に進められる。(3) By replacing only the cylinder, a flow path with a different profile is provided, and the study of the optimal flow path can proceed in a short period of time and at low cost.
第１図は、本発明の製膜口金の一実施例に係る流入孔を
含む部分の横断面図、
第２図は、本発明の製膜口金の一実施例に係る流路を含
まない端部の横断面図、
第３図は、本発明の製膜口金の一実施例に係る円柱円面
の展開図、
第４図は、本発明の製膜口金の別の実施例に係る流入孔
を含む部分の横断面図、
第５図は、本発明の製膜口金の一実施例に、排出スリッ
ト部剛性補強板を設けた例、
第６図は、従来の製膜口金の例を示す。
１ニジリンダ
２：円柱
３：流入孔
４：排出スリット
５：流路
６：リップFIG. 1 is a cross-sectional view of a portion including an inflow hole according to an embodiment of the film-forming die of the present invention, and FIG. FIG. 3 is a developed view of a cylindrical surface according to one embodiment of the film-forming die of the present invention, and FIG. 4 is an inflow hole of another embodiment of the film-forming die of the present invention. FIG. 5 shows an example of an embodiment of the film forming die of the present invention in which a rigid reinforcing plate is provided for the discharge slit portion, and FIG. 6 shows an example of a conventional film forming die. . 1 Niji cylinder 2: Cylinder 3: Inflow hole 4: Discharge slit 5: Channel 6: Lip
Claims (4)
孔及び排出スリットが設けられ、該円柱の周面に、該流
入孔と該排出スリットとを連絡する流路が設けられ、該
シリンダに該円柱が挿入組立されていることを特徴とす
る製膜口金。(1) Consisting of a cylinder and a column, the cylinder is provided with an inflow hole and a discharge slit, a flow path is provided on the circumferential surface of the column that connects the inflow hole and the discharge slit, and the cylinder is provided with an inflow hole and a discharge slit. A film-forming mouthpiece characterized in that a cylinder is inserted and assembled.
るリップを設けたことを特徴とする特許請求の範囲第１
項記載の製膜口金。(2) Claim 1 characterized in that a lip forming a flow path is provided on both edges of the discharge slit of the cylinder.
Film-forming cap described in section.
設けられ、円柱に各流入孔と該排出スリットとを連絡す
る独立した２つの流路が設けられていることを特徴とす
る特許請求の範囲第１項記載の製膜口金。(3) The cylinder is provided with two inflow holes and one discharge slit, and the cylinder is provided with two independent flow paths that communicate each inflow hole and the discharge slit. The film-forming die set forth in Scope 1.
リンダの内径が該円柱の外径よりも小さく、挿入組立し
た状態で、固く密着することを特徴とする特許請求の範
囲第１項記載の製膜口金。(4) When the cylinder and the cylinder are disassembled, the inner diameter of the cylinder is smaller than the outer diameter of the cylinder, and when the cylinder and the cylinder are inserted and assembled, they are in tight contact with each other. Film-forming cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62090941A JPS63256418A (en) | 1987-04-15 | 1987-04-15 | Nozzle for preparing film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62090941A JPS63256418A (en) | 1987-04-15 | 1987-04-15 | Nozzle for preparing film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63256418A true JPS63256418A (en) | 1988-10-24 |
Family
ID=14012479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62090941A Pending JPS63256418A (en) | 1987-04-15 | 1987-04-15 | Nozzle for preparing film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63256418A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02269806A (en) * | 1989-03-13 | 1990-11-05 | Accurate Products Co | Melt blow die |
| FR2697774A1 (en) * | 1992-11-10 | 1994-05-13 | Albert Plastiques | Flat die for extruding film, sheet or plate made of synthetic material. |
| EP0652097A1 (en) * | 1993-11-09 | 1995-05-10 | Extrusion De Basse Normandie-Exbanor, S.A. | Apparatus for combining at least two material streams in a coextrusion-laminating machine |
| WO1996035570A1 (en) * | 1993-11-09 | 1996-11-14 | Extrusion De Basse Normandie - Exbanor, S.A. | Device for joining at least two material flows in a laminar coextrusion machine |
| CN111605161A (en) * | 2020-07-06 | 2020-09-01 | 佛山安博模具有限公司 | Flush joint mould |
-
1987
- 1987-04-15 JP JP62090941A patent/JPS63256418A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02269806A (en) * | 1989-03-13 | 1990-11-05 | Accurate Products Co | Melt blow die |
| FR2697774A1 (en) * | 1992-11-10 | 1994-05-13 | Albert Plastiques | Flat die for extruding film, sheet or plate made of synthetic material. |
| EP0597781A1 (en) * | 1992-11-10 | 1994-05-18 | Les Plastiques De La Deome | Flat sheet die for the extrusion of plastic films, struts or panels |
| EP0652097A1 (en) * | 1993-11-09 | 1995-05-10 | Extrusion De Basse Normandie-Exbanor, S.A. | Apparatus for combining at least two material streams in a coextrusion-laminating machine |
| FR2712227A1 (en) * | 1993-11-09 | 1995-05-19 | Exbanor Sa | Device for joining at least two streams in a laminar coextrusion machine |
| WO1996035570A1 (en) * | 1993-11-09 | 1996-11-14 | Extrusion De Basse Normandie - Exbanor, S.A. | Device for joining at least two material flows in a laminar coextrusion machine |
| CN111605161A (en) * | 2020-07-06 | 2020-09-01 | 佛山安博模具有限公司 | Flush joint mould |
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