JP2964269B2 - Manufacturing method of Futaba ring - Google Patents
Manufacturing method of Futaba ringInfo
- Publication number
- JP2964269B2 JP2964269B2 JP31560190A JP31560190A JP2964269B2 JP 2964269 B2 JP2964269 B2 JP 2964269B2 JP 31560190 A JP31560190 A JP 31560190A JP 31560190 A JP31560190 A JP 31560190A JP 2964269 B2 JP2964269 B2 JP 2964269B2
- Authority
- JP
- Japan
- Prior art keywords
- wax
- connecting rod
- ring
- rings
- 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 - Lifetime
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、環体のボス部を押しつぶして連結杆を抜止
状態に保持する工程を必要としない二葉環の製造法に係
るものである。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a two-leaf ring which does not require a step of crushing a boss portion of a ring body to hold a connecting rod in a retaining state.
従来、釣糸の撚り戻しなどに多用される二葉環の連結
手段は、特公昭51−12336号公報に開示されているよう
にボス部の孔（テーパー孔の方がかしめ易い）を連結杆
の係止鍔の径より少し大きく形成し、連結杆の係止鍔を
ボス部の孔より環体内に貫挿してからボス部を押しつぶ
して抜止状態に止着している。Conventionally, a connecting means of a two-leaf ring which is frequently used for untwisting a fishing line, for example, is disclosed in Japanese Patent Publication No. 51-12336, in which a hole in a boss portion (a tapered hole is easier to caulk) is engaged with a connecting rod. The connecting flange is formed slightly larger than the diameter of the stopper flange, the locking flange of the connecting rod is inserted through the hole of the boss part into the ring body, and then the boss part is crushed to be secured in the retaining state.
この作業はその環体に見合う特殊な挾圧具を設計製造
しなければならなかったり、注意深く加圧したりしなけ
ればならず、それだけ製造が厄介であった。This operation required the design and manufacture of a special clamping device corresponding to the ring and the careful pressurization, which made the production troublesome.
本発明は、この点前記ボス部の押しつぶし作業を行わ
ずに係止鍔のある連結杆を環体に回動可能に止着するこ
とを可能にした二葉環の製造法を提供するものである。The present invention provides a method for manufacturing a two-leaf ring that enables a connecting rod having a locking flange to be rotatably fastened to a ring body without performing the crushing operation of the boss portion. .
添付図面を参照して本発明の用紙を説明する。 The paper of the present invention will be described with reference to the accompanying drawings.
割金型１・２で２個の環体ａ・ｂを製品の対向状態に
並べたワックス模型を成形する際、表面に耐火物層３を
形成した２個の環体ａ・ｂを連結する両端に係止鍔４を
有する連結杆ｃを割金型１の所定位置に止着架設し、ワ
ックスを注入して２個のワックス環体５・６を前記連結
杆ｃで連結した二葉環ワックス模型７を製作し、この二
葉環ワックス模型７により常法通りのセラミックシェル
モールド方式のロストワックス法によりロストワックス
鋳型９を形成し、このロストワックス鋳型９により連結
杆ｃで連結された２個の環体ａ・ｂを鋳造し、環体ａ・
ｂの耐火物層８と連結杆ｃの耐火物層３とを除去して２
個の環体ａ・ｂを両端に係止鍔４を有する連結杆ｃで回
動可能な状態に連結することを特徴とする二葉環の製造
法に係るものである。When forming a wax model in which two ring bodies a and b are arranged in a facing state of a product using split molds 1.2, two ring bodies a and b having a refractory layer 3 formed on the surface are connected. A two-leaf ring wax in which a connecting rod c having locking flanges 4 at both ends is fixedly mounted on a predetermined position of the split mold 1 and wax is injected to connect two wax rings 5 and 6 with the connecting rod c. A model 7 is manufactured, a lost wax mold 9 is formed from the two-leaf ring wax model 7 by a lost wax method of a ceramic shell mold system as usual, and two lost wax molds 9 connected by a connecting rod c are used. Rings a and b are cast, and rings a and
b) and the refractory layer 3 of the connecting rod c are removed.
The present invention relates to a method for manufacturing a two-leaf ring, wherein the ring bodies a and b are rotatably connected by a connecting rod c having locking flanges 4 at both ends.
あらかじめ耐火物層３を被覆形成した連結杆ｃで２個
のワックス環体ａ・ｂを連結した二葉環ワックス模型７
を製造するからソリッドモールド法のロストワックス法
によって金属注湯した場合に溶湯金属は直接連結杆ｃに
は接触しない。A two-leaf ring wax model 7 in which two wax rings a and b are connected by a connecting rod c having a refractory material layer 3 formed in advance.
When the metal is poured by the lost wax method of the solid mold method, the molten metal does not directly contact the connecting rod c.
従って、環体ａ・ｂと連結杆ｃとの耐火物層３・８を
除去すれば２個の環体ａ・ｂが互い連結杆ｃに対して廻
動する二葉環が製造される。Therefore, if the refractory layers 3.8 of the rings a and b and the connecting rod c are removed, a two-leaf ring in which the two rings a and b rotate relative to the connecting rod c is manufactured.
ワックス模型製作用の金型は鉄・黄銅・すず−ビスマ
ス合金などで製作し、これに半溶解状態のワックスを圧
入する。ダイカストに比べて注入材の温度が低いのでダ
イス材は耐熱性のものは必要としない。ワックスは注入
圧力が低く30kgf/cm2程度でよい。The mold for producing the wax model is made of iron, brass, tin-bismuth alloy or the like, and the semi-dissolved wax is pressed into this. Since the temperature of the injection material is lower than that of die casting, the die material does not need to be heat resistant. The injection pressure of the wax may be as low as about 30 kgf / cm 2 .
ワックスの場合凝固収縮が少なく変形がないようにBe
es wax,Carnauda wax,Paraffinなどを混合して用いる。
このようにして作ったワックス模型を必要に応じていく
つか組み合わせて同質のワックスで作った湯口を付け
る。In the case of wax, Be solid so that there is little solidification shrinkage and no deformation.
es wax, Carnauda wax, Paraffin and the like are mixed and used.
A wax gate made of the same kind of wax is attached by combining some of the wax models thus made as necessary.
本発明の場合組み立てた二葉環ワックス模型７のまわ
りに耐火性材料の塗装または被覆を行って、耐火物層８
を形成する。この材料は高温用のものと低温用のものと
で異なり、前者はけい砂・アルミナ・マグネシヤなどに
粘結剤としてけい酸エステル・けい酸ナトリウムなどを
加えたものであり、後者はけい砂・アスベストファイバ
などに焼石こうを加え水を配合したものである。In the case of the present invention, the refractory material 8 is applied by coating or coating a refractory material around the assembled two-leaf ring wax model 7.
To form This material is different for high-temperature and low-temperature materials.The former consists of silica sand, alumina, magnesium, etc., with silicate ester, sodium silicate, etc. added as a binder, and the latter is silica sand, It is made by adding calcined gypsum to asbestos fiber or the like and mixing water.
セラミックシェルモールド法ではコーティングを繰り
返して被覆厚を調整する。In the ceramic shell mold method, coating is repeated to adjust the coating thickness.
またあらかじめ連結杆ｃにも同様に同材のものをコー
ティングして耐火物層３を形成するがこの厚さは最終製
品で適切な廻動間隙が形成されるように配慮する。Similarly, the same material is coated on the connecting rod c in advance to form the refractory layer 3, and the thickness of the refractory layer 3 is designed so that an appropriate rotating gap is formed in the final product.
充分乾燥した後急速加熱によって５〜10分で脱ろう
し、強度を与えるため700〜1100℃の炉中で20分〜１時
間焼成する。鋳型を高温に保った状態で注湯して鋳造成
形を完了し、その後研摩を行い、鏡面仕上げをする。そ
のときの振動若しくは適宜な改めて振動を与えることな
どの適宜な手段で耐火物層３・８を除去し、回動間隙を
形成して製品とする。After being sufficiently dried, it is dewaxed in 5 to 10 minutes by rapid heating and baked in a furnace at 700 to 1100 ° C for 20 minutes to 1 hour to give strength. The casting is completed by pouring the mold while keeping the mold at a high temperature, and thereafter, is polished and mirror-finished. The refractory layers 3 and 8 are removed by an appropriate means such as the vibration at that time or an appropriate vibration, and a rotating gap is formed to obtain a product.
連結杆ｃは第１図のように、直線部分を短くする形状
にして耐火物層３が薄くなりすぎることを防止すること
が望ましい。As shown in FIG. 1, it is desirable that the connecting rod c has a shape in which the straight portion is shortened to prevent the refractory layer 3 from becoming too thin.
本発明は従来のように環体のボス部の孔を連結杆の鍔
部が入る径に形成し、連結杆を貫挿してから環体のボス
部を強圧して連結杆を止着する厄介な工程が不要とな
り、常法のロストワックス法を利用して２個の環体を製
作し、同時に連結杆を回動自在に装着することのできる
効率の良い二葉環の製造法となる。According to the present invention, the hole of the boss portion of the ring is formed to have a diameter that allows the flange portion of the connecting rod to enter, and the connecting rod is penetrated, and then the boss of the ring is strongly pressed to fasten the connecting rod. This eliminates the need for a simple process, and provides an efficient method for manufacturing a two-leaf ring in which two rings can be manufactured using a conventional lost wax method, and the connecting rod can be simultaneously rotatably mounted.
図面は本発明の一実施例を示すもので、第１図は外表面
に耐火物層を被覆した連結杆ｃの一部を拡大した斜視
図、第２図は二葉環ワックス模型７を形成する割金型１
の斜視図、第３図は前記割金型１で成形した二葉環ワッ
クス模型７の一部を切欠けた正面図、第４図は二葉環ワ
ックス模型７に耐火物層８を被覆してワックスを加熱溶
出せしめたロストワックス鋳型９の正断面図、第５図は
連結杆ｃの耐火物層３を除去した製品の斜視図である。 ａ・ｂ……環体、ｃ……連結杆、１・２……割金型、３
……耐火物層、４……係止鍔、５・６……ワックス環
体、７……二葉環ワックス模型、８……耐火物層、９…
…ロストワックス鋳型。FIG. 1 shows an embodiment of the present invention. FIG. 1 is an enlarged perspective view of a part of a connecting rod c having an outer surface coated with a refractory layer, and FIG. Split mold 1
FIG. 3 is a front view in which a part of a two-leaf ring wax model 7 formed by the split mold 1 is cut away, and FIG. 4 is a wax in which a refractory layer 8 is coated on the two-leaf ring wax model 7. FIG. 5 is a front sectional view of the lost wax mold 9 in which the refractory layer 3 of the connecting rod c has been removed. a, b: ring, c: connecting rod, 1.2: split mold, 3
...... Refractory layer, 4 ... Locking collar, 5.6 Wax ring, 7 ... Foil ring wax model, 8 ... Refractory layer, 9 ...
... Lost wax mold.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 浅野 金治 新潟県三条市大字月岡2866番地 浅野金 属工業株式会社内 (56)参考文献 特開 昭62−199257（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) B22C 9/04 B22D 19/00,19/04 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kinji Asano 2866 Tsukioka, Sanjo-shi, Niigata Prefecture Inside Asano Kinzoku Kogyo Co., Ltd. (56) References JP-A-62-199257 (JP, A) (58) Survey 6 (Int.Cl. 6 , DB name) B22C 9/04 B22D 19 / 00,19 / 04
Claims (1)
べたワックス模型を成形する際、表面に耐火物層を形成
した２個の環体を連結する両端に係止鍔を有する連結杆
を割金型の所定位置に止着架設し、ワックスを注入して
２個のワックス環体を前記連結杆で連結した二葉環ワッ
クス模型を製作し、この二葉環ワックス模型により常法
通りのセラミックシェルモールド方式のロストワックス
法によりロストワックス鋳型を形成し、このロストワッ
クス鋳型により連結杆で連結された２個の環体を鋳造
し、環体の耐火物層と連結杆の耐火物層とを除去して２
個の環体を両端に係止鍔を有する連結杆で回動可能な状
態に連結することを特徴とする二葉環の製造法。When a wax model in which two rings are arranged in a facing state of a product with a split mold is formed, locking flanges are provided at both ends for connecting the two rings having a refractory layer formed on the surface. Is connected to the split mold at a predetermined position, and wax is injected to produce a two-leaf ring wax model in which two wax rings are connected by the connecting rod. A lost wax mold is formed by a lost wax method of a ceramic shell mold method as usual, and two rings connected by a connecting rod are cast by the lost wax mold, and the refractory layer of the ring and the fire resistance of the connecting rod are formed. Remove the material layer and 2
A method for manufacturing a two-leaf ring, comprising: connecting a plurality of rings in a rotatable state with a connecting rod having locking flanges at both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31560190A JP2964269B2 (en) | 1990-11-20 | 1990-11-20 | Manufacturing method of Futaba ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31560190A JP2964269B2 (en) | 1990-11-20 | 1990-11-20 | Manufacturing method of Futaba ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04187341A JPH04187341A (en) | 1992-07-06 |
| JP2964269B2 true JP2964269B2 (en) | 1999-10-18 |
Family
ID=18067317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31560190A Expired - Lifetime JP2964269B2 (en) | 1990-11-20 | 1990-11-20 | Manufacturing method of Futaba ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2964269B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757472B (en) * | 2020-12-31 | 2022-07-29 | 重庆聚融建设（集团）股份有限公司 | Production mould of cement hard shoulder |
-
1990
- 1990-11-20 JP JP31560190A patent/JP2964269B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04187341A (en) | 1992-07-06 |
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