JPS62296937A - Supporting method for cantilever core - Google Patents
Supporting method for cantilever coreInfo
- Publication number
- JPS62296937A JPS62296937A JP13934286A JP13934286A JPS62296937A JP S62296937 A JPS62296937 A JP S62296937A JP 13934286 A JP13934286 A JP 13934286A JP 13934286 A JP13934286 A JP 13934286A JP S62296937 A JPS62296937 A JP S62296937A
- Authority
- JP
- Japan
- Prior art keywords
- core
- cantilever
- casting
- supporting
- plate
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 238000005266 casting Methods 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 101100384819 Caenorhabditis elegans cope-1 gene Proteins 0.000 abstract 1
- 239000000047 product Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 229920006328 Styrofoam Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000008261 styrofoam Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/12—Accessories
- B22C21/14—Accessories for reinforcing or securing moulding materials or cores, e.g. gaggers, chaplets, pins, bars
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
3、発明の詳細な説明
(産業上の利用分野)
この発明は、鋳造作業時において特に鋳仕上工程での手
間工数を低減するために工夫されたもので、生型造型ラ
インにおける片持ち中子の支持方法に関するものである
。[Detailed Description of the Invention] 3. Detailed Description of the Invention (Field of Industrial Application) This invention was devised to reduce the number of man-hours required during casting work, especially in the finishing process. The present invention relates to a method for supporting a cantilever core in a molding line.
(従来の技術)
従来、上記生型造型ラインにおける片持ち中子の支持方
法としては第2図に示すような方法が行われている。第
2図において、aは上型。(Prior Art) Conventionally, a method as shown in FIG. 2 has been used as a method for supporting a cantilever core in the above-mentioned green molding line. In Fig. 2, a is the upper mold.
bは下型であり、Cは片持ち中子、dは中子である。f
は第3図(a)及び(b)に示したような完成品Fを鋳
物によって作るために上型aと下型す並びに片持ち中子
C及び中子dとによって形成される空隙部である。なお
eは中子支持用の鋳抜孔9gは複数個のささえ具(ケレ
ン)であり。b is the lower mold, C is the cantilever core, and d is the core. f
is the cavity formed by the upper mold a, the lower mold, and the cantilever core C and the core d in order to produce the finished product F shown in FIGS. 3(a) and (b) by casting. be. Note that e indicates that the casting hole 9g for supporting the core is a plurality of supporting tools.
lは片持ち中子Cの幅木寸法を示す。l indicates the baseboard dimension of the cantilever core C.
一般に片持゛ち中子Cは全体の長さが長く大きいものが
用いられるときには、型内で支持するときにだれを生じ
易いので、このようなだれを防止する目的で幅木寸法l
を長くするか、或いは中子支持用の鋳抜き孔eを設けて
これに別の中子dをはめこんで中子dによって中子Cの
先端部を支持する方法が用いられている。In general, when a cantilever core C is used that has a long overall length and is large, it tends to sag when supported in the mold, so in order to prevent this sag, the baseboard size l is
A method is used in which the tip of the core C is supported by the core d by increasing the length of the core, or by providing a cast hole e for supporting the core and fitting another core d into the hole e.
(発明が解決しようとする問題点)
上述したようないわゆる片持ち中子の支持方法では、鋳
抜き孔を設けであるために、仕上る鋳物製品の鋳抜き孔
によって生じた孔の箇所を6第3図(a)にkで示した
ようにプレート溶接等の手段を用いて埋め込んで最終製
品を作らなければならず、孔埋め費用と中子費用と工数
とを要するものであり、また片持ち中子のだれ防止のた
めに中子の幅木寸法を大きくすることはそれだけ中子の
製作費が高くつくというような不具合を有している。(Problems to be Solved by the Invention) In the above-mentioned so-called cantilever core support method, since a cast hole is provided, the hole created by the cast hole in the finished casting product is placed in the sixth position. As shown by k in Figure 3 (a), the final product must be made by embedding using means such as plate welding, which requires hole filling costs, core costs, and man-hours, and cantilevered Increasing the baseboard size of the core in order to prevent the core from sagging has the disadvantage that the manufacturing cost of the core increases accordingly.
この発明は上記不具合を解消することをその目的とする
ものである。It is an object of the present invention to solve the above-mentioned problems.
(問題点を解決するための手段及び作用)この発明は上
記の点に鑑みなされたものであって、上型と下型及び片
持ち中子によって型内に形成される空隙部内に発泡スチ
ロールや発泡ポリスチレン等のいわゆる消失模型の材料
から成る消失プレートを設けて中子を中子の下側および
/または中子の前端側から支持するようにしたので、型
内で片持ち中子を安定した状態で支持することができ、
また幅木寸法を短くすると共に1片持ち中子支持用の鋳
抜き孔を設ける必要がなくなるので、中子費用の低減と
手間とを大幅に軽減することができる。(Means and effects for solving the problems) The present invention was made in view of the above points, and the present invention has been made in view of the above points. A vanishing plate made of a so-called vanishing model material such as polystyrene is provided to support the core from the bottom side of the core and/or from the front end of the core, allowing the cantilevered core to remain stable in the mold. can be supported by,
Further, since the baseboard size is shortened and there is no need to provide a cast hole for supporting a single cantilever core, the core cost and labor can be significantly reduced.
そして消失プレートは鋳造の際には溶湯によって徐々に
置き換えられて行くのでスムースな鋳造作業が行われる
ものである。Since the vanishing plate is gradually replaced by molten metal during casting, the casting operation is performed smoothly.
(実施例) つぎにこの発明の実施例を図面に基づいて説明する。(Example) Next, embodiments of the present invention will be described based on the drawings.
第1図において1は上型、2は下型、3は湯口及び湯道
を示す。4は片持ち中子であり、上型1及び下型2と共
に型内に空隙部5が形成される。6はささえ具(ケレン
)で通常複数個用いる。7,8は例えば発泡スチロール
等の消失模型の材料を用いた消失プレートであってその
厚みは鋳物製品の肉厚相当の大きさを有し、中子4を型
内の空間部内で前端及び下方から支持するようになって
いる。9は中子4の幅木寸法を示し、従来のものより短
い大きさですむ。In FIG. 1, 1 is an upper mold, 2 is a lower mold, and 3 is a sprue and a runner. 4 is a cantilever core, and a cavity 5 is formed in the mold together with the upper mold 1 and the lower mold 2. Number 6 is a supporting tool (keren), which is usually used in multiple pieces. Numerals 7 and 8 are vanishing plates made of vanishing model material such as styrofoam, and the thickness thereof is equivalent to the wall thickness of the cast product. I am starting to support it. 9 indicates the baseboard dimension of the core 4, which needs to be shorter than the conventional one.
いま湯口3を介して溶湯を空間部5内に注入すると2発
泡スチロール等の消失プレート7゜8は徐々に溶湯と置
き換えられて、スムースな鋳造作業が行なわれる。When molten metal is now injected into the space 5 through the sprue 3, the vanishing plates 7.8 made of styrofoam or the like are gradually replaced with the molten metal, and smooth casting work is performed.
この発明の実施例のものは2以上のように。There are two or more embodiments of this invention.
消失プレート7.8を主型と中子4との間にセットしで
あるので2片持ち中子4がその前端部と下側から消失プ
レート7.8によって支持されることになるので、中子
4は型の空隙内で安定して且つ確実に支持されるために
、従来のように特別に中子支持用の鋳抜き孔を設ける必
要がなくなり、従って鋳抜き孔の埋板溶接の手間も省け
、中子の幅木寸法も小さくてすむ。従って中子費の大幅
な低減ができる。Since the vanishing plate 7.8 is set between the main mold and the core 4, the two cantilevered cores 4 are supported by the vanishing plate 7.8 from their front ends and lower sides. Since the core 4 is stably and reliably supported within the cavity of the mold, it is no longer necessary to provide a special cast hole for supporting the core as in the past, and therefore the trouble of welding the cast hole with a fill plate is reduced. This also reduces the size of the core baseboard. Therefore, core costs can be significantly reduced.
(発明の効果) この発明は以上詳述したようにして成るので。(Effect of the invention) This invention is constructed as described above in detail.
生型造型ラインにおいて片持ち中子を支持するのに極め
て簡単且つ確実に支持できると共に鋳仕上工程での手入
れの工数を低減できるものである。The cantilever core can be supported extremely easily and reliably in the green mold making line, and the number of maintenance steps in the casting and finishing process can be reduced.
すなわち主型と片持ち中子との間に消失プレートをセッ
トして、この消失プレートにより片持ち中子を適宜前端
部と下側から支持するようにしたので、中子の幅木寸法
を小さくすることができ、従来のように片持中子支持用
の鋳抜き孔を設けることが不要となるため、鋳抜き孔の
埋板溶接等の手間も省け、工数と中子費の大幅な低減が
可能となる。In other words, a vanishing plate is set between the main mold and the cantilevered core, and this vanishing plate supports the cantilevered core appropriately from the front end and the bottom, so the baseboard size of the core can be reduced. This eliminates the need to provide a cast hole for supporting the cantilever core as in the past, which eliminates the need for welding filled plates in the cast hole, resulting in a significant reduction in man-hours and core costs. becomes possible.
そして消失プレートは鋳造の際には溶湯によって徐々に
置き換えられて行くので、スムースな鋳造作業が行われ
るものである。Since the vanishing plate is gradually replaced by molten metal during casting, the casting operation is performed smoothly.
第1図はこの発明の片持ち中子の支持法を理解するため
に図解的に示したもの、第2図は従来の方法を示したも
の、第3図(alは鋳物の完成品の断面l、第3図Cb
)はA−Aからみた矢視図である。
1・・・上型、2・・・下型、3・・・湯口及び湯道。
4・・・片持ち中子、 5・・・型の空隙部。
7.8・・・消失プレート。
特許出願人 株式会社小松製作所
代理人 (弁理士)松 澤 統
笛 1 図
II2図Fig. 1 is a diagrammatic illustration for understanding the method of supporting a cantilever core according to the present invention, Fig. 2 shows a conventional method, and Fig. 3 (al is a cross section of the finished product of the casting). l, Figure 3Cb
) is an arrow view seen from A-A. 1... Upper mold, 2... Lower mold, 3... Sprue and runner. 4...Cantilever core, 5...Mold cavity. 7.8... Vanishing plate. Patent applicant: Komatsu Ltd. Representative (patent attorney): Tobue Matsuzawa 1 Figure II 2
Claims (1)
内に鋳物製品の肉厚相当の厚みを有する消失プレートを
適宜設けて、これら消失プレートによって片持ち中子を
支持させて鋳造するようにしたことを特徴とする、片持
ち中子の支持方法。A vanishing plate having a thickness equivalent to the wall thickness of the cast product is appropriately provided in the cavity formed by the upper mold, the lower mold, and the cantilever core, and the cantilever core is supported by these vanishing plates during casting. A method for supporting a cantilevered core.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13934286A JPS62296937A (en) | 1986-06-17 | 1986-06-17 | Supporting method for cantilever core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13934286A JPS62296937A (en) | 1986-06-17 | 1986-06-17 | Supporting method for cantilever core |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62296937A true JPS62296937A (en) | 1987-12-24 |
Family
ID=15243097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13934286A Pending JPS62296937A (en) | 1986-06-17 | 1986-06-17 | Supporting method for cantilever core |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62296937A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0528539U (en) * | 1991-09-25 | 1993-04-16 | 株式会社小松製作所 | Keren for mold |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6015447B2 (en) * | 1980-06-25 | 1985-04-19 | 極東開発工業株式会社 | mixer car |
-
1986
- 1986-06-17 JP JP13934286A patent/JPS62296937A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6015447B2 (en) * | 1980-06-25 | 1985-04-19 | 極東開発工業株式会社 | mixer car |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0528539U (en) * | 1991-09-25 | 1993-04-16 | 株式会社小松製作所 | Keren for mold |
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