JPH07119014B2 - Manufacturing method of fiber reinforced plastic fan - Google Patents
Manufacturing method of fiber reinforced plastic fanInfo
- Publication number
- JPH07119014B2 JPH07119014B2 JP3557688A JP3557688A JPH07119014B2 JP H07119014 B2 JPH07119014 B2 JP H07119014B2 JP 3557688 A JP3557688 A JP 3557688A JP 3557688 A JP3557688 A JP 3557688A JP H07119014 B2 JPH07119014 B2 JP H07119014B2
- Authority
- JP
- Japan
- Prior art keywords
- reinforced plastic
- cavity
- fiber
- fiber reinforced
- fan
- 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 - Fee Related
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は外観形状や、送風特性に優れた繊維強化プラス
チック製フアンを製造する方法に関するものである。TECHNICAL FIELD The present invention relates to a method for producing a fiber-reinforced plastic fan excellent in appearance and blowing characteristics.
（従来の技術） 繊維強化プラスチックからなるフアンは、全体が金属部
材からなるフアンと比較して軽量、かつ耐蝕性に優れて
いるという利点がある。(Prior Art) A fan made of fiber reinforced plastic has advantages that it is lighter in weight and excellent in corrosion resistance as compared with a fan made of a metal member as a whole.
このフアンの製造方法として、従来から所望の形状を有
する金型キャビティ内に繊維強化プラスチックを充填す
ることによって一体的に成形する方法が提案されてい
る。As a method of manufacturing this fan, conventionally, a method has been proposed in which a mold cavity having a desired shape is filled with a fiber-reinforced plastic to integrally mold it.
（発明が解決しようとする課題） しかしながら、金型キャビティ内に繊維強化プラスチッ
クを充填して、平板状の羽根と、該羽根を支持する取付
軸とが一体となったフアンを成形する場合には、繊維強
化プラスチックが万遍なくキャビティ内にいきわたらな
いことがあり、未充填部分ができることがあった。(Problems to be Solved by the Invention) However, in the case where a mold cavity is filled with fiber reinforced plastic to form a fan in which a flat blade and a mounting shaft supporting the blade are integrated, However, the fiber-reinforced plastic sometimes did not evenly spread in the cavity, and unfilled parts were sometimes formed.
特に、キャビティの隙間が狭くなる羽根の先端部分に
は、未充填部分が発生し易く、羽根の先端部が欠除した
り、凹部ができることがあった。In particular, an unfilled portion is likely to occur at the tip of the blade where the gap between the cavities is narrowed, and the tip of the blade may be cut off or a recess may be formed.
このような場合には、単にフアンの外観形状が悪いとい
うだけでなく、所望の送風量が得られないという問題が
あった。In such a case, there is a problem that not only the external shape of the fan is bad, but also a desired air flow cannot be obtained.
本発明は、かかる問題点を解決したものであって、外観
形状、送風特性に優れた繊維強化プラスチック製フアン
が得られる製造方法を提供するものである。The present invention has solved the above problems and provides a manufacturing method capable of obtaining a fiber-reinforced plastic fan excellent in appearance and blowing characteristics.
（課題を解決するための手段） 本発明は、所望の形状を有する金型キャビティ内に繊維
強化プラスチックを充填して平板状の羽根と、該羽根を
支持する取付軸とを繊維強化プラスチックで一体的に成
形するにあたり、予めキャビティを構成する金型内壁面
の所定位置に繊維強化プラスチックを添着させておいて
から、前記キャビティ内に繊維強化プラスチックを充填
することを特徴とするものである。(Means for Solving the Problem) According to the present invention, a plate-shaped blade having a mold cavity having a desired shape filled with a fiber-reinforced plastic and a mounting shaft for supporting the blade are integrated with the fiber-reinforced plastic. In the conventional molding, the fiber reinforced plastic is attached to a predetermined position of the inner wall surface of the mold forming the cavity in advance, and then the fiber reinforced plastic is filled in the cavity.
（作用） 未充填部分が発生し易い部分の金型キャビティ内の所定
位置に、予め繊維強化プラスチックを添着しておいてか
ら該キャビティ内に繊維強化プラスチックを充填する
と、フアンの一部が欠除したり、フアンの表面に凹部が
できることがない。(Function) When the fiber reinforced plastic is pre-attached to a predetermined position in the mold cavity where the unfilled portion is likely to occur and then the fiber reinforced plastic is filled into the cavity, a part of the fan is removed. And there are no recesses on the surface of the fan.
（実施例） 以下、本発明の実施例を図面にて詳細に説明する。(Examples) Examples of the present invention will be described in detail below with reference to the drawings.
第１図は本発明で使用する金型装置の一実施例を示す断
面図、第２図は本発明によって得られたフアンを冷却塔
のベルマウス内に取付けた状態を示す部分断面側面図で
あり、図中符号１はフアン、２は鋳鉄、アルミニウム等
からなる金属製芯材、３は上型、４は下型、５はキャビ
ティである。FIG. 1 is a sectional view showing an embodiment of a mold apparatus used in the present invention, and FIG. 2 is a partial sectional side view showing a state in which the fan obtained according to the present invention is installed in a bell mouth of a cooling tower. In the figure, reference numeral 1 is a fan, 2 is a metal core material made of cast iron, aluminum or the like, 3 is an upper mold, 4 is a lower mold, and 5 is a cavity.
本発明では、金属製芯材２を金型キャビティ５内にセッ
トしてその外周をガラス繊維に不飽和ポリエステルの樹
脂液等を含浸指せた繊維強化プラスチックで被覆するに
あたり、金型キャビティ５を構成する上型３および下型
４の内壁面の所定位置に繊維強化プラスチック６を添着
する。In the present invention, the mold cavity 5 is formed when the metal core material 2 is set in the mold cavity 5 and the outer periphery of the metal core material 2 is covered with the fiber reinforced plastic impregnated with glass fiber impregnated with the unsaturated polyester resin liquid or the like. The fiber reinforced plastic 6 is attached to predetermined positions on the inner wall surfaces of the upper mold 3 and the lower mold 4.
この繊維強化プラスチック６を添着する位置としては、
キャビティ５内に繊維強化プラスチックを充填したとき
にそのまわりが悪い箇所、例えば第２図に示したフアン
１の羽根11の先端部分、取付軸12の一端角部に対応する
位置などが挙げられる。As a position to attach the fiber reinforced plastic 6,
Examples of such locations include locations where the cavity 5 is poorly filled with the fiber reinforced plastic, for example, the tip portions of the blades 11 of the fan 1 shown in FIG.
次いで、芯材２をキャビティ５内にセットする。この具
体的手段としては、上型３および下型４に設けたスライ
ドピン７をキャビティ５内に突出させて芯材２をキャビ
ティ５の中間位置にセットするとよい。Next, the core material 2 is set in the cavity 5. As a concrete means for this, the slide pin 7 provided on the upper mold 3 and the lower mold 4 may be projected into the cavity 5 to set the core 2 at an intermediate position of the cavity 5.
このようにして、予めキャビティ５を構成する金型内壁
面の所定位置に繊維強化プラスチック６を添着し、芯材
２をキャビティ５内にセットした後、上型３に設けた注
入口31からキャビティ５内に繊維強化プラスチックを注
入する。キャビティ５内に繊維強化プラスチックが充満
すると、これによって芯材２の外面が覆われ、予めキャ
ビティ５内に添着しておいた繊維強化プラスチック６と
一体化する。そこで、芯材２を支持しているスライドピ
ン７をキャビティ５内から後退させ、該キャビティ５内
に充填された繊維強化プラスチックが固化するのをまっ
て、上型３と下型４とを型開きする。In this way, the fiber reinforced plastic 6 is preliminarily attached to a predetermined position on the inner wall surface of the mold forming the cavity 5, the core material 2 is set in the cavity 5, and then the cavity 31 is supplied from the injection port 31 provided in the upper mold 3. Inject fiber-reinforced plastic into 5. When the cavity 5 is filled with the fiber reinforced plastic, the outer surface of the core material 2 is covered by this and the fiber reinforced plastic 6 previously attached in the cavity 5 is integrated. Therefore, the slide pin 7 supporting the core material 2 is retracted from the inside of the cavity 5 to prevent the fiber reinforced plastic filled in the cavity 5 from solidifying, and the upper mold 3 and the lower mold 4 are molded. Open.
すると、第２図に示したような所望の湾曲面を有する平
板状の羽根11と、該羽根11を支持する取付軸12とが繊維
強化プラスチックで一体的に形成されると共に、前記取
付軸12の一端部から羽根11の基部に亘って金属製芯材２
が埋設されたフアンが得られる。Then, a flat blade 11 having a desired curved surface as shown in FIG. 2 and a mounting shaft 12 supporting the blade 11 are integrally formed of fiber reinforced plastic, and the mounting shaft 12 is From one end of the blade to the base of the blade 11
Juan is buried.
本発明によって得られた繊維強化プラスチックフアン
は、主として冷却塔のベルマウス内に取付けられるもの
であり、第２図に示した如く円盤状の支持板８の上面に
２〜８本のフアン１が適宜の支持部材81を介して放射状
に取付けられ、前記支持板８の下面には空気抵抗を軽減
するためのノーズコーン９が４〜６本のボルト等によっ
て固定される。The fiber-reinforced plastic fan obtained by the present invention is mainly installed in the bellmouth of the cooling tower, and as shown in FIG. 2, 2 to 8 fans 1 are provided on the upper surface of the disk-shaped support plate 8. A nose cone 9 for reducing air resistance is fixed to the lower surface of the support plate 8 by 4 to 6 bolts or the like, which are radially attached via an appropriate support member 81.
（発明の効果） 以上に述べた如く、本発明は所望の形状を有する金属キ
ャビティ内に繊維強化プラスチックを充填して平板状の
羽根と、該羽根を支持する取付軸とを繊維強化プラスチ
ックで一体的に成形するにあたり、予めキャビティを構
成する金属内壁面の所定位置に繊維強化プラスチックを
添着させておいてから、前記キャビティ内に繊維強化プ
ラスチックを充填するので、フアンの一部が欠除した
り、フアンの表面に凹部ができることがない。(Effects of the Invention) As described above, according to the present invention, a metal-cavity having a desired shape is filled with fiber-reinforced plastic, and a flat blade and a mounting shaft for supporting the blade are integrally formed of the fiber-reinforced plastic. In order to mold the fiber, the fiber reinforced plastic is preliminarily attached to a predetermined position of the inner wall surface of the metal forming the cavity, and then the fiber reinforced plastic is filled in the cavity. There is no recess on the surface of the fan.
従って、このフアンを冷却塔のベルマウス内に取付けて
回転させたときに、所望の風量が得られることから充分
な気液接触効率が達成できる。Therefore, when this fan is mounted in the bellmouth of the cooling tower and rotated, a desired air volume can be obtained, so that sufficient gas-liquid contact efficiency can be achieved.
第１図は本発明で使用する金属装置の一実施例を示す断
面図、第２図は本発明によって得られたフアンを冷却塔
のベルマウス内に取付けた状態を示す部分断面側面図で
ある。 １……フアン、11……羽根、12……取付軸 ２……金属製芯材、３、４……金型 ５……キャビティFIG. 1 is a cross-sectional view showing an embodiment of a metal device used in the present invention, and FIG. 2 is a partial cross-sectional side view showing a state in which the fan obtained by the present invention is mounted in a bell mouth of a cooling tower. . 1 ... Juan, 11 ... Blade, 12 ... Mounting shaft 2 ... Metal core material 3, 4 ... Mold 5 ... Cavity
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｌ 31:08 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location B29L 31:08
Claims (1)
維強化プラスチックを充填して平板状の羽根と、該羽根
を支持する取付軸とを繊維強化プラスチックで一体的に
成形するにあたり、予めキャビティを構成する金型内壁
面の所定位置に繊維強化プラスチックを添着させておい
てから、前記キャビティ内に繊維強化プラスチックを充
填することを特徴とする繊維強化プラスチック製フアン
の製法。1. A mold cavity having a desired shape is filled with fiber reinforced plastic to integrally form a flat blade and a mounting shaft for supporting the blade with the fiber reinforced plastic in advance. A method for producing a fiber-reinforced plastic fan, characterized in that the fiber-reinforced plastic is affixed to a predetermined position on the inner wall surface of the mold constituting the above, and then the cavity is filled with the fiber-reinforced plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3557688A JPH07119014B2 (en) | 1988-02-18 | 1988-02-18 | Manufacturing method of fiber reinforced plastic fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3557688A JPH07119014B2 (en) | 1988-02-18 | 1988-02-18 | Manufacturing method of fiber reinforced plastic fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01209115A JPH01209115A (en) | 1989-08-22 |
| JPH07119014B2 true JPH07119014B2 (en) | 1995-12-20 |
Family
ID=12445591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3557688A Expired - Fee Related JPH07119014B2 (en) | 1988-02-18 | 1988-02-18 | Manufacturing method of fiber reinforced plastic fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07119014B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4605202B2 (en) * | 2007-10-10 | 2011-01-05 | パナソニック電工株式会社 | Method for manufacturing rotor part of motor-integrated pump |
-
1988
- 1988-02-18 JP JP3557688A patent/JPH07119014B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01209115A (en) | 1989-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4827589A (en) | Method for the manufacture of a pump rotor for a coolant pump in a motor vehicle | |
| US6019927A (en) | Method of casting a complex metal part | |
| CN100559031C (en) | Turbofan and air conditioner | |
| US3123403A (en) | shrinkages oversize | |
| KR910002730B1 (en) | Fan casing volute | |
| US6126395A (en) | Axial fan | |
| JPH07119014B2 (en) | Manufacturing method of fiber reinforced plastic fan | |
| US6305458B1 (en) | Lost foam and sand cores stage manufacturing technology | |
| JPH10166398A (en) | Synthetic resin injection-molded body and fan motor, and injection-molding method | |
| JPH01253595A (en) | Impeller for water pump | |
| JPH08159091A (en) | Turbo fan and its injection molding method | |
| US5044419A (en) | Hollow post cylindrical sprue casting method | |
| JP2827827B2 (en) | Degassing equipment in casting mold equipment | |
| JP2764760B2 (en) | Manufacturing method of fiber reinforced plastic fan | |
| JPH0113940B2 (en) | ||
| KR950010604B1 (en) | Article device and method for casting | |
| CN211515967U (en) | Shape-deformation-preventing dynamic and static ring lost foam | |
| JPH0114377Y2 (en) | ||
| JPH08303395A (en) | Axial flow fan | |
| JPH0716077Y2 (en) | Fiber reinforced plastic fan | |
| KR960018262A (en) | Airfoil type blower wing manufacturing method | |
| CN106042240A (en) | Forming die of unmanned aerial vehicle housing | |
| KR20050047578A (en) | Propeller casting processes without blade flasks | |
| JP2505960B2 (en) | Molding machine for plastic containing filler | |
| JP3106766B2 (en) | Method of manufacturing impeller for vortex blower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |