JPS63101066A - Casting method for cooling hole for cast iron made metallic mold - Google Patents
Casting method for cooling hole for cast iron made metallic moldInfo
- Publication number
- JPS63101066A JPS63101066A JP24703486A JP24703486A JPS63101066A JP S63101066 A JPS63101066 A JP S63101066A JP 24703486 A JP24703486 A JP 24703486A JP 24703486 A JP24703486 A JP 24703486A JP S63101066 A JPS63101066 A JP S63101066A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- pipe
- air
- pattern
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 64
- 238000005266 casting Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 13
- 229910001018 Cast iron Inorganic materials 0.000 title claims description 3
- 239000004576 sand Substances 0.000 claims abstract description 3
- 239000003507 refrigerant Substances 0.000 claims description 6
- 238000007796 conventional method Methods 0.000 claims description 3
- 229920006248 expandable polystyrene Polymers 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 11
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 238000000465 moulding Methods 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 239000011261 inert gas Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 abstract 4
- 238000005187 foaming Methods 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 239000004794 expanded polystyrene Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003110 molding sand Substances 0.000 description 2
- 229920006327 polystyrene foam Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、プレス金型内に冷却孔を鋳造する方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of casting cooling holes in a press mold.
（従来の技術）
プレス金凰３１はプレスをするに従って金型３１の温度
が上昇するので金型に多数の孔３２ヲ設け、この孔３２
ｔ−利用して熱を逃がし、温度の上昇をおさえていた。(Prior art) Since the temperature of the press mold 31 increases as it presses, a large number of holes 32 are provided in the mold.
T- was used to dissipate heat and suppress the rise in temperature.
従来、プレス金型３１の中に形成される冷却用の孔３２
は、折曲してｉる必要がちるため、第５図〜第７図に示
すように、金型の型材３３ｆｔ分割し、分割した型材３
３ごとに、ドリル３４によって冷却孔３２ｔ−設け、そ
の後、穿孔を整合するように型材３３ヲ組付け、ボルト
３５によって金型本体３６に取付けていた。なお、３７
は被加物にしわを発生させないためのビードである。３
８は分割線でらる。Conventionally, cooling holes 32 formed in a press mold 31
Since it is necessary to bend and bend the mold, as shown in Figs.
3, a cooling hole 32t was formed with a drill 34, and then the mold material 33 was assembled so as to align the perforations, and was attached to the mold body 36 with bolts 35. Furthermore, 37
is a bead to prevent wrinkles from forming on the material. 3
8 is a dividing line.
（発明が解決しようとする問題点）
しかしながら従来の方法は、プレス品成形部の型材を分
割して、冷却孔を加工し、その後その型材を組付する構
造であったため、型材を組付するまでに°、時間がかか
るばかシでなく、金型の成形面に沿って、孔加工ができ
なφため、冷却孔が金型の成形面から離れる部位が生じ
、冷却効果が低下する問題があった。また、金型の成形
面に旧って孔加工ができないため、プレスに適用できな
い金型もあった。(Problem to be solved by the invention) However, the conventional method has a structure in which the mold material of the press product forming part is divided, cooling holes are machined, and then the mold materials are assembled. This is not a process that takes a lot of time, but since the holes cannot be machined along the molding surface of the mold, there are areas where the cooling holes are separated from the molding surface of the mold, which reduces the cooling effect. there were. In addition, there were some molds that could not be applied to presses because the molding surfaces of the molds were too old to form holes.
また、金型製造に係る費用も高くつく等の問題も生じて
いた。In addition, problems such as the high costs associated with manufacturing the molds have also arisen.
本発明は、上記従来の問題を解決するために提案された
もので、加工時間の短縮を図シ、もって冷却効果を低下
させることのないプどス金型の冷却孔の鋳造方法を提供
しようとするものである。The present invention was proposed in order to solve the above-mentioned conventional problems, and aims to provide a method for casting cooling holes in a mold that reduces processing time and does not reduce the cooling effect. That is.
（問題点を解決するための手段）
本発明は、上記問題点を解決するために、プレス金型を
鋳造するための発泡ポリスチレン模型の任意の位置に冷
却用のパイプを配設しておき、常法によル前記模型を砂
込め等にょシ設置し、しかる後、冷却用パイプに冷媒を
送υつつ、該冷却用パイプを鋳ぐるむこと全特徴とする
構成としたものである。(Means for Solving the Problems) In order to solve the above problems, the present invention provides a method in which a cooling pipe is disposed at any position of a foamed polystyrene model for casting a press mold. The structure is characterized in that the above-mentioned model is placed in a sand-filling method or the like using a conventional method, and then the cooling pipe is cast while feeding a refrigerant into the cooling pipe.
（作 用）
このような方法とすれば、冷却用のパイプに冷媒を送シ
ながら、注湯すれば、鋳造熱によって、鋳型内のパイプ
が変形、溶損されることもなく、安定して、冷却用パイ
プを鋳ぐるむことができ、このパイプをプレス金型の冷
却に利用しうるものである。(Function) With this method, if the refrigerant is pumped into the cooling pipe while pouring, the pipe inside the mold will not be deformed or melted due to the casting heat, and it will be stable. , a cooling pipe can be cast inside, and this pipe can be used for cooling the press mold.
（実施例） 次に、本発明の実施例を図にもとづいて説明する。(Example) Next, embodiments of the present invention will be described based on the drawings.
第１図〜第３図は、発泡ポリスチレンをｆ！Ａ型とする
消失鋳型鋳造法の一種であるフルモールド法で行う鋳造
方法の一実施例を示している。Figures 1 to 3 show expanded polystyrene f! An example of a casting method using the full mold method, which is a type of investment casting method, is shown.
第１図は金型の母型となる発泡ポリスチレン模型１で、
模型１に冷却用パイプ２が両端全外部に露出した状態で
２本埋め込まれている。そして第２図に示すようにこの
冷却用パイプ２の一端には冷媒として使用するエアー取
入ホース３を接続するために、エアヘッダブロック４、
エルボ管接手５、第１の凸ガグラ６ａ、第１の凹カプラ
６ｂ、中継エアホース７、ざらに第２の凸カプラ８ａ、
第２の凹カブラＢｂ、エアホース９が順次介装される。Figure 1 shows a foamed polystyrene model 1 that will be the mother mold of the mold.
Two cooling pipes 2 are embedded in a model 1 with both ends completely exposed to the outside. As shown in FIG. 2, an air header block 4, an air header block 4, and an air intake hose 3 used as a refrigerant are connected to one end of the cooling pipe 2.
Elbow pipe joint 5, first convex goggle 6a, first concave coupler 6b, relay air hose 7, roughly second convex coupler 8a,
A second concave cover Bb and an air hose 9 are successively installed.
エアホース９０基端は圧縮されたエア１０を供給するエ
ア源１１と接続される。The base end of the air hose 90 is connected to an air source 11 that supplies compressed air 10.
一方、冷却用パイプ２の他端には、排気パイプ１２！−
接続するために、エアヘッダブロック１３、エルボ管接
手１４、パイプーネクタ凸１５ａ１パイプコネクタ凹１
５ｂが介装される。On the other hand, at the other end of the cooling pipe 2, there is an exhaust pipe 12! −
For connection, air header block 13, elbow pipe joint 14, pipe connector convex 15a1, pipe connector concave 1
5b is interposed.
さらに接続された小径排気パイプ１６の他端に大径排気
パイプ１７が接続される。Further, a large diameter exhaust pipe 17 is connected to the other end of the small diameter exhaust pipe 16.
エア排出側Ｂの部材はエア取入側Ａの部材に比べて高温
の排気エアに十分耐えられるものが使われて―る。この
ように装備された模型１は下部鋳枠１８の中で砂込めさ
れ同時に溶湯１９が流れこむように湯道２０が設けられ
て−る。この時発泡ボリスチレ／模型１の底面２１の位
置に、エアー取入個人は第２凸カプラ８ａが、エア排出
側Ｂは小径パイプ１６の外気側がくるようにセットして
おく。The members on the air discharge side B are made of materials that can withstand the exhaust air at a higher temperature than the members on the air intake side A. The model 1 equipped in this manner is filled with sand in the lower flask 18, and at the same time a runner 20 is provided so that the molten metal 19 can flow therein. At this time, the air intake side is set so that the second convex coupler 8a is placed on the bottom surface 21 of the foamed Boristire/model 1, and the air discharge side B is placed on the outside air side of the small diameter pipe 16.
このような状態におφて冷却用パイプ２Ｉ中に冷却用の
エアを送シつつ、溶湯１９ヲ湯道２０よシ発泡ポリスチ
レン模聾１に流入式せると、溶湯１９は模型１のしめる
部位に充満する。この際、溶湯１９は冷却用パイプ２に
接触をし、第３図で示すように溶湯１９の熱Ｃが冷却用
パイプ２よシ鋳物砂２２に熱放散されるが景は少い。さ
らに冷却用パイプ２が昇温するにつれて熱Ｃは、°冷却
用パイプ２の外面より冷却用パイプ２内面に伝導し、こ
の冷却用パイプ２の内面を伝わる熱エネルギーが、冷却
用パイプ２、排気パイプ１２内部を通過する圧縮□エア
１０によって熱交換され、加温された圧縮エアが排気パ
イプを通って大気中に放出される。In this state, when the molten metal 19 is allowed to flow into the expanded polystyrene mold 1 through the runner 20 while sending cooling air into the cooling pipe 2I in φ, the molten metal 19 flows into the area where the model 1 is closed. filled with. At this time, the molten metal 19 comes into contact with the cooling pipe 2, and as shown in FIG. 3, the heat C of the molten metal 19 is dissipated through the cooling pipe 2 and into the molding sand 22, but the scenery is small. Furthermore, as the temperature of the cooling pipe 2 increases, the heat C is conducted from the outer surface of the cooling pipe 2 to the inner surface of the cooling pipe 2, and the thermal energy transmitted through the inner surface of the cooling pipe 2 is transferred to the cooling pipe 2, the exhaust gas Heat is exchanged with the compressed air 10 passing through the pipe 12, and the heated compressed air is discharged into the atmosphere through the exhaust pipe.
鋳造完了後、冷却用パイプ２に接続された部材を取りは
ずし、第４図に示すように、鋳造された金型ｌを金型本
体２３上にセットし、プレス金型として使用する。After the casting is completed, the member connected to the cooling pipe 2 is removed, and as shown in FIG. 4, the cast mold l is set on the mold body 23 and used as a press mold.
以上エアー１０の通風によって、金型の熱容量が大きく
なシ、溶湯の凝固時間が長くても冷却用パイプ２は溶融
しない。As described above, due to the ventilation of the air 10, the cooling pipe 2 does not melt even if the heat capacity of the mold is large and the solidification time of the molten metal is long.
壕だ、エアー１０によって冷却用パイプ２の急激な温度
上昇をおさえることができるため、冷却用パイプ２に熱
変形応力による亀裂の発生もしない。Since the rapid temperature rise of the cooling pipe 2 can be suppressed by the air 10, cracks do not occur in the cooling pipe 2 due to thermal deformation stress.
したがって、冷却パイプ２ｆ：簡易に安定して、溶損な
く鋳ぐるむことかできる。Therefore, the cooling pipe 2f can be cast easily and stably without melting damage.
なお、本実施例では冷却触体にエアを使用したがこれに
変えて、水、不活性ガス等の他の冷却媒体を使用しても
より。Although air is used for the cooling contact in this embodiment, other cooling media such as water or inert gas may be used instead.
（発明の効果）
以上詳述した通り、本発明に係る鋳鉄金型の冷却孔の鋳
造方法によれば、鋳造時に冷却用パイプを配設しておき
、パイプに冷媒を送シつつ注湯するので、凝固時間が長
い、大きい金型を鋳造する時でも、また、注湯の温度差
等の鋳造条件が変動しても、冷却パイプに変形、溶損が
なく安定して金型を鋳造することができる。(Effects of the Invention) As detailed above, according to the method for casting cooling holes in a cast iron mold according to the present invention, a cooling pipe is provided during casting, and molten metal is poured while feeding a refrigerant to the pipe. Therefore, even when casting large molds with long solidification times, or even when casting conditions such as differences in pouring temperature change, the molds can be cast stably without deformation or melting damage to the cooling pipe. be able to.
また、複雑な形状を有する金型でも、金型の成形面に沿
って、冷却孔を設けることができるので冷却効果が低下
することがなく、どんな形状の金量でも冷却孔をつくる
ことができる。In addition, even if the mold has a complex shape, cooling holes can be provided along the molding surface of the mold, so the cooling effect will not decrease, and cooling holes can be created with any shape and amount of metal. .
嘔らに、金型と冷却孔のパイプとが一体の構造となって
鋳造時に製作されてしまうので、冷却孔をドリル等で別
に設ける必要がなく、これに係る費用も軽減されると同
時に冷却孔を加工する手間が省ける。Moreover, since the mold and the pipe for the cooling hole are integrated and manufactured during casting, there is no need to separately prepare the cooling hole with a drill, etc., which reduces the cost and improves cooling efficiency. Saves the effort of drilling holes.
第１図は、本発明のプレス金型の冷却孔製造方法の一実
施例で模型のポリスチレン発泡体に冷却パイプを配設し
たところを示す斜視図、第２図は、第１図に係る冷却パ
イプの鋳ぐるみを一部切断して示す断面図、第３図は、
第２図に係る溶湯熱が冷却用パイプを通って鋳物砂に伝
わるところを示す断面図、第４図は、鋳造された金型を
金型本体にセットしたところを示す斜視図、第５図は、
従来のプレス金型を示す斜視図、第６図は、第４図に係
る分割した金型にドリルで冷却孔を設けているところを
示す側面図、第７図は、第４図に係る■−■線に白う断
面図である。
１・・・発泡ポリスチレン模型 １・・・プレス金型２
・・・冷却用パイプ １０−・・冷媒特許出願人
トヨタ自動車株式会社
代理人 弁理士 蔓 優 美（ほか２名）第１図
１ ＃ミ言ボリスナレ〉４興５２
丁 プレス金型
２ 二↑邪用バイフ。
第 ２ 図 １０・エア
第３図
第４図FIG. 1 is a perspective view showing cooling pipes arranged in a polystyrene foam model in an embodiment of the method for manufacturing cooling holes in a press mold according to the present invention, and FIG. 2 is a perspective view showing cooling pipes according to FIG. Figure 3 is a cross-sectional view showing a part of the pipe casting.
Fig. 2 is a sectional view showing how the heat of the molten metal is transmitted to the molding sand through the cooling pipe; Fig. 4 is a perspective view showing the cast mold set in the mold body; Fig. 5; teeth,
FIG. 6 is a perspective view showing a conventional press mold; FIG. 6 is a side view showing cooling holes being drilled into the divided mold shown in FIG. 4; and FIG. - It is a cross-sectional view shown in line ■. 1... Polystyrene foam model 1... Press mold 2
... Cooling pipe 10 - ... Refrigerant patent applicant Toyota Motor Corporation representative Patent attorney Yumi Tsune (and 2 others) Figure 1 1 Bifu for. Figure 2 Figure 10 Air Figure 3 Figure 4
Claims (1)
型の任意の位置に冷却用のパイプを配設しておき、常法
により前記模型を砂込め等により設置し、しかる後、冷
却用のパイプに冷媒を送りつつ、該冷却用のパイプを鋳
ぐるむことを特徴とする鋳鉄金型の冷却孔の鋳造方法。(1) A cooling pipe is placed at an arbitrary position on a foamed polystyrene model for casting a press mold, and the model is installed by sand filling etc. using a conventional method, and then the cooling pipe is installed. 1. A method for casting cooling holes in a cast iron mold, which comprises casting a cooling pipe while sending a refrigerant to the cooling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24703486A JPS63101066A (en) | 1986-10-17 | 1986-10-17 | Casting method for cooling hole for cast iron made metallic mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24703486A JPS63101066A (en) | 1986-10-17 | 1986-10-17 | Casting method for cooling hole for cast iron made metallic mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63101066A true JPS63101066A (en) | 1988-05-06 |
Family
ID=17157426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24703486A Pending JPS63101066A (en) | 1986-10-17 | 1986-10-17 | Casting method for cooling hole for cast iron made metallic mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63101066A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991003337A1 (en) * | 1989-09-01 | 1991-03-21 | Ube Industries, Ltd. | Method of manufacturing metallic mold having heating cooling pipe incorporated |
| CN105290381A (en) * | 2015-11-19 | 2016-02-03 | 福建兴航机械铸造有限公司 | Positioning method for internal chills of large casting die cavity |
| JP2017024048A (en) * | 2015-07-23 | 2017-02-02 | 株式会社キーレックス | Press device |
| GB2588795A (en) * | 2019-11-07 | 2021-05-12 | Lin Jianguo | Die for stamping sheet metal and method of manufacturing the same |
-
1986
- 1986-10-17 JP JP24703486A patent/JPS63101066A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991003337A1 (en) * | 1989-09-01 | 1991-03-21 | Ube Industries, Ltd. | Method of manufacturing metallic mold having heating cooling pipe incorporated |
| JP2017024048A (en) * | 2015-07-23 | 2017-02-02 | 株式会社キーレックス | Press device |
| CN105290381A (en) * | 2015-11-19 | 2016-02-03 | 福建兴航机械铸造有限公司 | Positioning method for internal chills of large casting die cavity |
| GB2588795A (en) * | 2019-11-07 | 2021-05-12 | Lin Jianguo | Die for stamping sheet metal and method of manufacturing the same |
| GB2588795B (en) * | 2019-11-07 | 2021-11-24 | Lin Jianguo | Die for stamping sheet metal and method of manufacturing the same |
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