JPS6345934B2 - - Google Patents
Info
- Publication number
- JPS6345934B2 JPS6345934B2 JP2017281A JP2017281A JPS6345934B2 JP S6345934 B2 JPS6345934 B2 JP S6345934B2 JP 2017281 A JP2017281 A JP 2017281A JP 2017281 A JP2017281 A JP 2017281A JP S6345934 B2 JPS6345934 B2 JP S6345934B2
- Authority
- JP
- Japan
- Prior art keywords
- insert
- blower
- cavity
- impeller
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14344—Moulding in or through a hole in the article, e.g. outsert moulding
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0046—Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/087—Propellers
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
【発明の詳細な説明】
この発明は遠心過給機などに使用するブロワイ
ンペラの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a blower propeller used in a centrifugal supercharger or the like.
従来遠心過給機などに使用されるブロワインペ
ラは、高速回転に耐え得るようそのほとんどが金
属製であつた。しかし最近では強度の高い炭素繊
維強化プラスチツクの出現により、これを使用し
たブロワインペラも製造されつつある。しかし上
記炭素繊維強化プラスチツクでブロワインペラを
一体成型した場合、肉厚の大きいボス部に空洞が
生じやすく十分に強度の大きなブロワインペラが
得られないと共に、上記プラスチツクで一体成形
されたブロワインペラを回転軸に取付けて使用し
た場合、インペラ自体のヤング率が金属に比べて
小さいため、ボルトなどで十分に締付けても使用
中に緩むなどの不具合があつた。 BACKGROUND OF THE INVENTION Most blower propellers conventionally used in centrifugal superchargers and the like have been made of metal to withstand high-speed rotation. However, recently, with the advent of high-strength carbon fiber reinforced plastics, blower impellers using this material are also being manufactured. However, when a blower propeller is integrally molded from the above-mentioned carbon fiber reinforced plastic, cavities tend to form in the thick boss part, making it impossible to obtain a sufficiently strong blower propeller. When used mounted on a shaft, the Young's modulus of the impeller itself is smaller than that of metal, so there were problems such as loosening during use even if bolts were sufficiently tightened.
この発明はかかる不具合を改善する目的でなさ
れたもので、ブロワインペラの中心部に位置する
よう周囲に多数の小孔を有する筒状インサートを
インペラ成型金型内にセツトした後炭素繊維で強
化した熱可塑性プラスチツクを上記インサートの
小孔より金型のキヤビテイ内へ射出して、インペ
ラ本体とインサートが一体となつたブロワインペ
ラを成型するブロワインペラの製造方法を提供し
て、特にボス部の強度が高くかつ回転軸へ取付け
た場合も緩むことのないブロワインペラを得よう
とするものである。 This invention was made with the aim of improving this problem, and a cylindrical insert with many small holes around the circumference was set in the impeller mold so as to be located in the center of the blower impeller, and then reinforced with carbon fiber. The present invention provides a method for manufacturing a blower impeller in which a thermoplastic plastic is injected into the cavity of a mold through the small hole of the insert to form a blower impeller in which the impeller body and the insert are integrated, and the strength of the boss part is particularly improved. The objective is to obtain a blower propeller that is high and does not come loose even when mounted on a rotating shaft.
以下この発明方法を図示の一実施例により詳述
すると、図において１はブロワインペラ成型用金
型で、内部にキヤビテイ１ａを有している。ブロ
ワインペラの成型に当つて、まず金属管などを所
定の寸法に切断し、かつ周囲に多数の小孔２ａを
放射方向（第２図ｂ参照）へ穿設したインサート
２を予め製作し、インサート２の外表面はプラス
チツクとの付着力を増大するためロレツト加工な
どの処理を施しておく。 The method of the present invention will be described in detail below with reference to an embodiment shown in the drawings. In the drawing, 1 is a mold for molding a blower wine propeller, and has a cavity 1a inside. When molding a blower propeller, first, a metal tube or the like is cut to a predetermined size, and an insert 2 is prepared in advance with a large number of small holes 2a drilled in the radial direction (see Fig. 2b) around the circumference. The outer surface of No. 2 is subjected to a treatment such as knurling to increase its adhesion to plastic.
次に上記インサート２をキヤビテイ１ａの中央
部に第１図に示すように収容した後金型１の底部
に開口した射出口１ｂより炭素繊維で強化した熱
可塑性プラスチツクをインサート２内へ射出す
る。インサート２内へ射出された熱可塑性樹脂は
インサート２の小孔２ａよりキヤビテイ１ａ内に
第３図に示すような流れで充満される。すなわち
キヤビテイ１ａ内に流入する熱可塑性プラスチツ
クは中心から周辺部へと広がるため、中心部の炭
素繊維分布はより密となつて強度が増大し、これ
によつて高速回転した場合に生じる遠心力にも十
分対応できるようになる。 Next, the insert 2 is housed in the center of the cavity 1a as shown in FIG. 1, and then carbon fiber-reinforced thermoplastic is injected into the insert 2 through an injection port 1b opened at the bottom of the mold 1. The thermoplastic resin injected into the insert 2 fills the cavity 1a through the small hole 2a of the insert 2 in a flow as shown in FIG. 3. In other words, since the thermoplastic plastic flowing into the cavity 1a spreads from the center to the periphery, the carbon fiber distribution in the center becomes denser and its strength increases, thereby resisting the centrifugal force generated when rotating at high speed. will also be able to respond adequately.
一方金型１内において熱可塑性樹脂が硬化した
ら金型１内よりインペラ成型品を取出しした後、
インサート２内に充満されている熱可塑性樹脂を
ドリルなどを通すことにより取除いて、完成され
たブロワインペラとするものである。 On the other hand, once the thermoplastic resin has hardened in the mold 1, the impeller molded product is taken out from the mold 1, and then
The thermoplastic resin filled in the insert 2 is removed by passing it through a drill or the like to obtain a completed blower propeller.
この発明は以上詳述したように、インペラ成型
金型内に金属インサートをセツトして、この金属
インサートに設けた多数の小孔よりキヤビテイ内
へ炭素繊維で強化した熱可塑性プラスチツクを射
出してブロワインペラを成型するようにしたこと
から、得られたブロワインペラは全体が炭素繊維
により強化されたものとなり、高速回転に十分耐
え得る強度を有していると共に、プラスチツクの
一部がインサート２の小孔２ａ内に喰い込んでい
るので、インサート２とプラスチツクの接着力が
大きく、使用中インサート２が剥離する虞れもな
い。またインサート２を埋設することによりイン
ペラボス部の肉厚がインサート２のない従来のも
のに比べて薄くできるため、成型時ボス部に強度
を低下させる空洞などが生じる心配もないと共
に、回転軸に取付ける場合インサートに回転軸を
挿入してナツトなどで十分に締付けることができ
ることから、使用中に緩むなどの虞れも殆んどな
い。 As described in detail above, this invention involves setting a metal insert in an impeller mold, and injecting carbon fiber-reinforced thermoplastic into the cavity through a number of small holes provided in the metal insert to build a blower. Since the impeller is molded, the resulting blower impeller is entirely reinforced with carbon fiber, and has enough strength to withstand high-speed rotation. Since it is inserted into the hole 2a, the adhesive strength between the insert 2 and the plastic is strong, and there is no risk of the insert 2 peeling off during use. In addition, by burying the insert 2, the wall thickness of the impeller boss can be made thinner compared to conventional models without the insert 2, so there is no need to worry about creating cavities in the boss that reduce strength during molding, and it can be mounted on the rotating shaft. In this case, the rotating shaft can be inserted into the insert and sufficiently tightened with a nut, so there is almost no risk of it loosening during use.
図面はこの発明の一実施例を示し、第１図は成
型金型にインサートをセツトした状態の断面図、
第２図ａはインサートの斜視図、第２図ｂは同平
面図、第３図はキヤビテイ内におけるプラスチツ
クの流れを示す説明図である。
１は金型、１ａはキヤビテイ、２はインサー
ト、２ａは小孔。
The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional view of the insert set in the mold;
FIG. 2a is a perspective view of the insert, FIG. 2b is a plan view thereof, and FIG. 3 is an explanatory view showing the flow of plastic within the cavity. 1 is a mold, 1a is a cavity, 2 is an insert, and 2a is a small hole.
Claims (1)
テイ１ａ中心部に、周囲に多数の小孔２ａを穿設
した金属製の筒状インサート２をセツトした後、
炭素繊維で強化した熱可塑性プラスチツクを上記
インサート２内より小孔２ａを経てキヤビテイ１
ａ内へ射出することを特徴とするブロワインペラ
の製造方法。1. After setting a metal cylindrical insert 2 with a large number of small holes 2a around it in the center of the cavity 1a of the mold 1 in which the blower propeller is to be molded,
A thermoplastic reinforced with carbon fiber is inserted into the cavity 1 from inside the insert 2 through the small hole 2a.
A method for producing a blower impeller, characterized by injecting the air into the interior of the blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017281A JPS57135132A (en) | 1981-02-16 | 1981-02-16 | Manufacture of impeller of blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017281A JPS57135132A (en) | 1981-02-16 | 1981-02-16 | Manufacture of impeller of blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57135132A JPS57135132A (en) | 1982-08-20 |
| JPS6345934B2 true JPS6345934B2 (en) | 1988-09-13 |
Family
ID=12019751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017281A Granted JPS57135132A (en) | 1981-02-16 | 1981-02-16 | Manufacture of impeller of blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57135132A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003512197A (en) * | 1999-10-18 | 2003-04-02 | スベンスカ・ロツタア・マスキナア・アクチボラグ | Method for manufacturing polymer rotor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0392475U (en) * | 1990-01-11 | 1991-09-20 | ||
| JP5454400B2 (en) * | 2010-07-15 | 2014-03-26 | 株式会社富士通ゼネラル | Propeller fan and manufacturing method thereof |
| JP5739181B2 (en) * | 2011-02-02 | 2015-06-24 | 帝人株式会社 | Manufacturing method of carbon fiber reinforced composite material joined member using thermoplastic resin as matrix |
-
1981
- 1981-02-16 JP JP2017281A patent/JPS57135132A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003512197A (en) * | 1999-10-18 | 2003-04-02 | スベンスカ・ロツタア・マスキナア・アクチボラグ | Method for manufacturing polymer rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57135132A (en) | 1982-08-20 |
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