JPH02192302A - Manufacture of parabolic antenna reflector - Google Patents
Manufacture of parabolic antenna reflectorInfo
- Publication number
- JPH02192302A JPH02192302A JP1134889A JP1134889A JPH02192302A JP H02192302 A JPH02192302 A JP H02192302A JP 1134889 A JP1134889 A JP 1134889A JP 1134889 A JP1134889 A JP 1134889A JP H02192302 A JPH02192302 A JP H02192302A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- film
- metallic
- foam
- metallic mold
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000006260 foam Substances 0.000 claims abstract description 21
- 238000001746 injection moulding Methods 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 239000012790 adhesive layer Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000011888 foil Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000011241 protective layer Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 abstract description 3
- 239000004645 polyester resin Substances 0.000 abstract description 3
- 238000005187 foaming Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000035699 permeability Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000010097 foam moulding Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はパラボラアンテナ反射体の製造方法、特に、発
泡射出成形によるプラスチック製パラボラアンテナの製
造に適用しうるパラボラアンテナ反射体の製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a parabolic antenna reflector, and particularly to a method for manufacturing a parabolic antenna reflector that can be applied to manufacturing a plastic parabolic antenna by foam injection molding.
従来の技術としては、例えば、特公昭６０−２０６３０
４号に示されているように、熱成形可能なベースフィル
ム上に金属層を一構成層として１層状の樹脂複合体に形
成した転写フィルムを、射出成形用金型の成形面に載置
した後、機械的に成形面の形状とほぼ同形状に変形せし
め、射出成形用金型を閉じて、金型内に射出成形用樹脂
を充填し、電波反射材料層を成形品の曲面上に形成する
パラボラアンテナ反射体の製造方法がある。As a conventional technique, for example, Japanese Patent Publication No. 60-20630
As shown in No. 4, a transfer film formed into a one-layer resin composite with a metal layer as one constituent layer on a thermoformable base film was placed on the molding surface of an injection mold. After that, it is mechanically deformed into almost the same shape as the molded surface, the injection mold is closed, the mold is filled with injection molding resin, and a radio wave reflective material layer is formed on the curved surface of the molded product. There is a method for manufacturing a parabolic antenna reflector.
しかしながら、上述した従来のパラボラアンテナ反射体
の製造方法は、発泡成形の時に、金属箔がガス透過させ
ない為、成形品本体に含まれるガスによりて、金属膜を
おしあげ、ふくれをおこす開塾があった。However, in the conventional manufacturing method of the parabolic antenna reflector described above, during foam molding, the metal foil does not allow gas to pass through, so the gas contained in the molded product body tends to push down the metal film and cause blistering. Ta.
また、ヒートサイクル等の環境試験によシ接着層間にガ
スが混入している為密着性の低下を招き、後７クレの問
題があった。Furthermore, in environmental tests such as heat cycling, gas was mixed between the adhesive layers, resulting in a decrease in adhesion, resulting in a problem of 7 cracks.
本発明のパラボラアンテナ反射体の製造方法は、ガス透
過性を有する接着層とガス抜き孔を有する金属層、及び
、ガス抜き孔を有する保護層から成る金属箔フィルムを
発泡樹脂射出成形用金量の成形面にインサートした後、
発泡成形用金量を閉じて、金型内を減圧しながら発泡射
出成形用樹脂を充填し、冷却後、金型内圧を常圧に戻し
てから離型し、転写フィルムを発泡成形品の曲面上に形
成するようにして構成される。The method for manufacturing a parabolic antenna reflector of the present invention is to mold a metal foil film consisting of an adhesive layer having gas permeability, a metal layer having gas vent holes, and a protective layer having gas vent holes into a foamed resin injection molding material. After inserting into the molding surface of
Close the foam molding mold, fill the mold with foam injection molding resin while reducing the pressure inside the mold, and after cooling, return the mold internal pressure to normal pressure and release the mold, and transfer the transfer film to the curved surface of the foam molded product. It is configured so that it is formed on top.
次に、本発明の実施例について、図面を参照して詳細に
説明する。Next, embodiments of the present invention will be described in detail with reference to the drawings.
第１図（ａ）〜（ｄ）は、本発明の一実施例を示す工程
断面図である。FIGS. 1(a) to 1(d) are process cross-sectional views showing one embodiment of the present invention.
第１図（ａ）に示すように、インサートフィルム６を、
発泡射出成形用固定体金型８と発泡射出成形用可動側金
型９との間にインサートする。なお、インサートフィル
ム６は第２図に示すようにガス透過性を有する接着層２
とガス抜は孔５を有する金属層３と、ガス抜は孔５を有
する耐候性ポリエステル樹脂の保護膜４から成っている
。As shown in FIG. 1(a), the insert film 6 is
It is inserted between the fixed mold 8 for foam injection molding and the movable mold 9 for foam injection molding. Note that the insert film 6 has an adhesive layer 2 having gas permeability as shown in FIG.
It consists of a metal layer 3 having gas vent holes 5, and a weather-resistant polyester resin protective film 4 having gas vent holes 5.
次に、第１図（ｂ）に示すように１発泡射出成形用可動
金型９を移動させ、インサートフィルム押え用クランプ
７．７′でインサートフィルム６を発泡射出成形用固定
側金型８に固定させる。Next, as shown in FIG. 1(b), the movable mold 9 for foam injection molding is moved, and the insert film 6 is placed in the fixed mold 8 for foam injection molding using the insert film holding clamp 7.7'. Fix it.
次に、第１図（ｃ） Ｋ示すように、発泡射出成形用可
動側金型９をさらに移動させ、インサートフィルム６を
延伸させ、発泡射出成形可動側金槃９成形面と同形状に
する。この時、真空ポンプ１１によシ、ガスベント１０
を介し、金型内を７０ｃｍＨｇ以下に減圧することによ
シ、インサートフィルム６０発泡射出成形可動側金型９
の密着性を向上させ、インサートフィルム６を成形面と
精度よく同形状にせしめている。Next, as shown in FIG. 1(c) K, the movable side mold 9 for foam injection molding is further moved, and the insert film 6 is stretched to have the same shape as the molding surface of the movable side mold 9 for foam injection molding. . At this time, the vacuum pump 11 is turned on and the gas vent 10
By reducing the pressure inside the mold to 70 cmHg or less through
The insert film 6 is made to have the same shape as the molding surface with high accuracy.
次に第１図（ｄ）に示すように、金製内を７０ｃＩｒＬ
Ｈｇ以下に減圧した状態で、発泡樹脂を充填させる。Next, as shown in Figure 1(d), fill the gold inner with 70cIrL.
The foamed resin is filled with the pressure reduced to below Hg.
充填された発泡樹脂は減圧下の金型内では発泡しにくい
為、インサートフィルム６と発泡樹脂の間で泡を抱き込
まず、密着性および、インサートフィルム６の面形状の
精度を向上させることができる。冷却後、金型内を常圧
に戻してから、発泡射出成形用可動側金型９を移動させ
、整開きを行い、インサートフィルム６を曲面上に形成
させた成形品を離形させる。Since the filled foamed resin is difficult to foam in a mold under reduced pressure, bubbles are not trapped between the insert film 6 and the foamed resin, and the adhesion and accuracy of the surface shape of the insert film 6 can be improved. can. After cooling, the inside of the mold is returned to normal pressure, and then the movable mold 9 for foam injection molding is moved and opened properly, and the molded product with the insert film 6 formed on the curved surface is released.
第３図は本発明の実施例によシ製造されたパラボラアン
テナの断面図で、ストラクチャル７オーム（ＳＦ）成形
等で得られる発泡成形品本体１の表面全体にガス透過性
を有する接着層２があシ、その表面全体にガス抜き用小
孔５を有する延伸性、耐食性が優れたアルミ箔のよう々
、金属層３があシ、さらに、その表面全体にガス抜き用
小孔５を有する耐候性ポリエステル樹脂のような保護層
４で覆われている。FIG. 3 is a cross-sectional view of a parabolic antenna manufactured according to an embodiment of the present invention, in which an adhesive layer having gas permeability is formed on the entire surface of the foam molded product body 1 obtained by structural 7 ohm (SF) molding, etc. The metal layer 3 is made of aluminum foil with excellent stretchability and corrosion resistance, and has small holes 5 for gas venting on its entire surface. It is covered with a protective layer 4 such as a weather-resistant polyester resin.
この方法によル製造されたパラボラアンテナ反射体のピ
ーリング強度は１．０に９Ａ以上という密着性の優れて
いるものである。The peeling strength of the parabolic antenna reflector manufactured by this method is 1.0 to 9 A or more, which shows excellent adhesion.
本発明のパラボラアンテナ反射体の製造方法は、ガス抜
き孔を有するインサートフィルムを用いた真空インモー
ルド工法によシ、金型内を減圧することでインサートフ
ィルムを金型に密着させるので、曲面精度が向上する。The manufacturing method of the parabolic antenna reflector of the present invention uses a vacuum in-mold method using an insert film having gas vent holes.The insert film is brought into close contact with the mold by reducing the pressure inside the mold, so the curved surface accuracy can be improved. will improve.
また、発泡させずに樹脂をインサートフィルム面に溶着
させることができるので、接着層に気泡が介入せず、密
着性及び面精度の向上ができるという効果がある。In addition, since the resin can be welded to the insert film surface without foaming, air bubbles do not intervene in the adhesive layer, resulting in improved adhesion and surface precision.
さらに、屋開きする際、常圧にリークするので、再ふく
れ防止の効果がある。また、ガス抜き孔によシ後ガスを
逃がすことができるので、後ふくれがおこらない。Furthermore, when the roof is opened, the pressure leaks back to normal pressure, which helps prevent blistering again. In addition, the gas can be released through the gas vent hole, so no blistering occurs.
第１図（ａ）〜（ｄ）は本発明の一実施例を示す工程断
面図、第２図はインサートフィルムの拡大断面図、第３
図はパラボラアンテナの断面図である。
１・・・発泡成形品本体、２・・・接着層、３・・・金
属層、４・・・保護層、５・・・ガス抜き孔、６・・・
インサートフィルム、７，７′・・・インサートフィル
ム押工用クランプ、
８・・・発泡射出成形用固定側金型、
９・・・発泡
射出成形用可動側金型、
Ｏ・・・ガスベント、
・・・真空ポンプ。1(a) to 1(d) are process sectional views showing one embodiment of the present invention, FIG. 2 is an enlarged sectional view of an insert film, and FIG. 3 is an enlarged sectional view of an insert film.
The figure is a cross-sectional view of a parabolic antenna. DESCRIPTION OF SYMBOLS 1... Foamed molded product body, 2... Adhesive layer, 3... Metal layer, 4... Protective layer, 5... Gas vent hole, 6...
Insert film, 7, 7'... Clamp for insert film pressing, 8... Fixed side mold for foam injection molding, 9... Movable side mold for foam injection molding, O... Gas vent, ・··Vacuum pump.
Claims (1)
、及びガス抜き孔を有する保護層から成る金属箔フィル
ムを発泡樹脂射出成形用金型の成形面にインサートした
後、発泡成形用金型を閉じて、金型内を減圧しながら発
泡射出成形用樹脂を充填し、冷却後、金型内圧を常圧に
戻してから離型し、インサートフィルムを発泡成形品の
曲面上に形成したことを特徴とするパラボラアンテナ反
射体の製造方法。After inserting a metal foil film consisting of a gas permeable adhesive layer, a metal layer having gas vent holes, and a protective layer having gas vent holes into the molding surface of a foam resin injection mold, the foam mold The mold was closed and filled with foam injection molding resin while reducing the pressure inside the mold, and after cooling, the mold was released after returning the mold internal pressure to normal pressure, and an insert film was formed on the curved surface of the foam molded product. A method for manufacturing a parabolic antenna reflector characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1134889A JPH02192302A (en) | 1989-01-20 | 1989-01-20 | Manufacture of parabolic antenna reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1134889A JPH02192302A (en) | 1989-01-20 | 1989-01-20 | Manufacture of parabolic antenna reflector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02192302A true JPH02192302A (en) | 1990-07-30 |
Family
ID=11775534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1134889A Pending JPH02192302A (en) | 1989-01-20 | 1989-01-20 | Manufacture of parabolic antenna reflector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02192302A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2343297A (en) * | 1998-09-01 | 2000-05-03 | Millitech Corp | Method of transflector manufacture |
| CN101870378A (en) * | 2009-04-21 | 2010-10-27 | 沙郎斯基股份公司 | The former and the method that are used for manufacturing type spare packing |
| WO2014005390A1 (en) * | 2012-07-04 | 2014-01-09 | 四川省视频电子有限责任公司 | High-accuracy antenna reflecting surface, moulding process thereof and satellite receiving antenna provided with same |
-
1989
- 1989-01-20 JP JP1134889A patent/JPH02192302A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2343297A (en) * | 1998-09-01 | 2000-05-03 | Millitech Corp | Method of transflector manufacture |
| GB2343297B (en) * | 1998-09-01 | 2001-02-14 | Millitech Corp | Synthetic resin transreflector and method of making same |
| CN101870378A (en) * | 2009-04-21 | 2010-10-27 | 沙郎斯基股份公司 | The former and the method that are used for manufacturing type spare packing |
| WO2014005390A1 (en) * | 2012-07-04 | 2014-01-09 | 四川省视频电子有限责任公司 | High-accuracy antenna reflecting surface, moulding process thereof and satellite receiving antenna provided with same |
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