JPH0318453A - Cooling device in die for casting - Google Patents
Cooling device in die for castingInfo
- Publication number
- JPH0318453A JPH0318453A JP15132089A JP15132089A JPH0318453A JP H0318453 A JPH0318453 A JP H0318453A JP 15132089 A JP15132089 A JP 15132089A JP 15132089 A JP15132089 A JP 15132089A JP H0318453 A JPH0318453 A JP H0318453A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- pouring
- sprue
- mold
- cooling system
- 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 53
- 238000005266 casting Methods 0.000 title claims abstract description 17
- 239000000498 cooling water Substances 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 abstract description 12
- 229910052751 metal Inorganic materials 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000002411 adverse Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000004781 supercooling Methods 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)
この発明は、例えば、シリンダブロックに用いるクラン
クシャフトの軸受部としての鋳鉄製ベアリングインサー
トなどの小物部品を鋳造するような鋳造用金型の冷却装
置に関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to cooling of casting molds for casting small parts such as cast iron bearing inserts as bearing parts of crankshafts used in cylinder blocks. Regarding equipment.
(従来技術)
一般に鋳造用金型としては、湯口部金型の下部にキャビ
ティを有する金型を一体結合し、湯口部金型の湯口を縦
湯口(sprue)および湯道(runner)を介し
て上述のキャビティに連通した鋳造用金型を用いる。(Prior art) Generally, as a casting mold, a mold having a cavity at the bottom of a sprue part mold is integrally connected, and the sprue of the sprue part mold is connected through a vertical sprue and a runner. A casting mold communicating with the cavity described above is used.
このような鋳造用金型により例えば鋳鉄製ベアリングイ
ンサートなどの小物部品を鋳造する場合、上述のキャビ
ティ内の溶湯は鋳込んだ後、短い凝固タイミングで凝固
し、この小物部品を金型の中に長く保持すると過冷却に
よりチル化して性質がもろくなるので、早期に開枠する
必要がある。When casting small parts such as cast iron bearing inserts using such casting molds, the molten metal in the cavity described above solidifies in a short solidification period after being cast, and the small parts are placed in the mold. If kept for a long time, it will become chilled due to supercooling and its properties will become brittle, so it is necessary to open the frame early.
一方、湯口部は注湯時のエアまき込みを防止する目的お
よび自動注湯装置の注湯サイクルの関係上、比較的大き
い容量が必要で、湯口内の溶湯の凝固時間は必然的に長
くなる。On the other hand, the sprue requires a relatively large capacity due to the purpose of preventing air intrusion during pouring and the pouring cycle of automatic pouring equipment, and the solidification time of the molten metal in the sprue is inevitably longer. .
このように金型のキャビティ内の溶湯と、湯口部金型の
湯口内の溶湯とで凝固タイミングが異なるので、キャビ
ティ内の製品は早く冷却されて凝固状態となっても、湯
口部の温度は第9図に点線Cで示すように所定容量のた
め冷却速度が遅く、湯口部の溶渦は未凝固状態乃至半凝
固状態となり、小物鋳造品を型から早期に取出すことが
できず、小物鋳造品の取出しタイミングに悪影響を与え
る問題があった。In this way, the solidification timing is different between the molten metal in the mold cavity and the molten metal in the sprue of the sprue mold, so even if the product in the cavity is quickly cooled and solidified, the temperature at the sprue remains low. As shown by the dotted line C in Figure 9, the cooling rate is slow due to the predetermined capacity, and the molten vortex at the sprue becomes unsolidified or semi-solidified, making it impossible to take out the small cast product from the mold early, and There was a problem that adversely affected the timing of product removal.
従来、鋳造用金型の冷却装置としては例えば、特開昭5
7−97838号公報および特開昭57−85642号
公報に記載の装置があるが、前者の特開昭57−978
38号公報に記載の装置は、金型の温度検出器により冷
却水の供給を制御して金型キャビティまわりの温度のみ
を制御する構造であるから、湯口部の冷却を行うことは
不可能であり、一方、後者の特開昭57−85642号
公報に記載の装置は、金型の湯口部に冷し金を挿入して
、湯口部の溶湯を凝固させる構造であるから、冷し金挿
入時に湯口部の溶湯が浮き上がる欠点があり、また上述
の冷し金を挿入する程度では注湯後の湯口部の充分な冷
却を行なうことができず、これら両公報に記載の従来装
置では何れも小物鋳造品の取出しタイミングに悪影響を
与える問題点を有していた。Conventionally, as a cooling device for casting molds, for example,
There are devices described in JP-A No. 7-97838 and JP-A-57-85642, but the former JP-A-57-978
The device described in Publication No. 38 has a structure in which only the temperature around the mold cavity is controlled by controlling the supply of cooling water using a mold temperature detector, so it is impossible to cool the sprue part. On the other hand, the latter device described in JP-A-57-85642 has a structure in which a chiller is inserted into the sprue of the mold to solidify the molten metal at the sprue. There is a drawback that the molten metal at the sprue sometimes floats up, and the sprue cannot be sufficiently cooled by inserting the chiller mentioned above. This method had a problem that adversely affected the timing of taking out small cast products.
(発明の目的)
この発明は、注湯後の湯口部の冷却速度を高めて、小物
鋳造品の取出しタイミングに悪影響を与えるのを確実に
防止することができる鋳造用金型の冷却装置の提供を目
的とする。(Object of the Invention) The present invention provides a cooling device for a casting mold that can increase the cooling rate of the sprue after pouring and reliably prevent adverse effects on the timing of taking out small cast products. With the goal.
(発明の構成)
この発明は、金型のキャビティまわりを冷却制御する第
1冷却系手段と、湯口部まわりを冷却制御する第2冷却
系手段とを独立して設け、上記第2冷却系手段に対して
注湯時には湯口部金型への冷却水の供給を停止し、注湯
後には湯口部金型へ冷却水を強制的に供給する制御手段
を備えた鋳造用金型の冷却装置であることを特徴とする
。(Structure of the Invention) The present invention provides a first cooling system means for cooling the area around the mold cavity and a second cooling system means for cooling the area around the sprue part, and independently provides the second cooling system means for cooling the area around the mold cavity. On the other hand, this is a cooling device for casting molds that is equipped with a control means that stops the supply of cooling water to the sprue mold during pouring, and forcibly supplies cooling water to the sprue mold after pouring. characterized by something.
(発明の効果)
この発明によれば、上述の制御手段が注湯後において第
1冷却系手段と独立して設けた上述の第2冷却系手段に
冷却水を強制的に供給して、湯口部を強制冷却する。(Effects of the Invention) According to the present invention, after pouring, the above-mentioned control means forcibly supplies cooling water to the above-mentioned second cooling system means provided independently of the first cooling system means, and Force cooling of the parts.
この結果、注湯後の湯口部の冷却速度を高めることがで
き、早期開枠を可能として小物鋳造品の過冷却によるチ
ルト化を防止することができる効果がある。As a result, the cooling rate of the sprue after pouring can be increased, enabling early opening of the frame and preventing tilting of the small cast product due to overcooling.
(実施例) この発明の一実施例を以下図面に基づいて詳述する。(Example) An embodiment of the present invention will be described in detail below based on the drawings.
図面は鋳造用金型の冷却装置を示し、第1図、第2図に
おいてキャビティ1を備えた金型2の上部中央に湯口部
金型3を一体的に結合し、この湯口部金型3に形成した
湯口4を、金型2内の縦湯口5および湯道6を介して上
述のキャビティ1に連通させている。The drawings show a cooling device for a casting mold, and in FIGS. 1 and 2, a sprue mold 3 is integrally connected to the upper center of a mold 2 having a cavity 1. A sprue 4 formed in the mold 2 is communicated with the above-mentioned cavity 1 via a vertical sprue 5 and a runner 6 in the mold 2.
上述の金型2は前後一対の合せ金型で構成され、第1図
では図示の便宜上、一方の金型の合せ面にハッチングを
施して示している。The above-mentioned mold 2 is composed of a pair of front and rear mating molds, and in FIG. 1, for convenience of illustration, the mating surface of one of the molds is shown hatched.
上述の金型2には、キャビティ1まわりを冷却制御する
第1冷却系装置7を設ける一方、湯口部金型3には湯口
4まわりを冷却制御する独立した第2冷却系装置8を設
けている。The mold 2 described above is provided with a first cooling system device 7 that controls cooling around the cavity 1, while the sprue mold 3 is provided with an independent second cooling system device 8 that controls cooling around the sprue 4. There is.
ここで、上述の第1冷却系装置7は、電磁弁9,10を
介設した給水管11.12にそれぞれ2っの分岐管13
,14.15.16を連通し、これら各分岐管13〜1
6を金型2内の冷却水通路17.18.19.20を介
して対応する排水管21.22.23.24に連通接続
すると共に、これら各排水管21〜24に電磁弁25.
26,27.28を介設して構威している。Here, the above-mentioned first cooling system device 7 has two branch pipes 13 in each of the water supply pipes 11 and 12 in which the solenoid valves 9 and 10 are interposed.
, 14, 15, 16, and these branch pipes 13 to 1
6 are connected to corresponding drain pipes 21.22.23.24 through cooling water passages 17.18.19.20 in the mold 2, and electromagnetic valves 25.25 are connected to each of these drain pipes 21-24.
26, 27, and 28 are interposed.
また、上述の第2冷却系装置8は、湯口部金型3内に形
成したジャケット29と、このジャケット29のインレ
ットポート29aに接続したインレットパイプ3oと、
このインレットパイプ3oに連通接続した給水管31お
よびエア供給管32と、上述のジャケット29のアウト
レットポート29bに接続したアウトレットパイブ33
と、上述の各要素31.32.33にそれぞれ介設した
電磁弁34,35.36とを備えている。Further, the above-mentioned second cooling system device 8 includes a jacket 29 formed in the sprue mold 3, an inlet pipe 3o connected to an inlet port 29a of this jacket 29,
A water supply pipe 31 and an air supply pipe 32 are connected to this inlet pipe 3o, and an outlet pipe 33 is connected to the outlet port 29b of the jacket 29 described above.
and electromagnetic valves 34, 35, 36 respectively interposed in the above-mentioned elements 31, 32, 33.
上述の電磁弁34は、第2冷却系装置8に対して注湯時
には湯口部金型3への冷却水の供給を停止し、注湯後に
は湯口部金型3へ冷却水を強制的に供給する制御手段で
ある。The above-mentioned solenoid valve 34 stops the supply of cooling water to the sprue mold 3 when pouring into the second cooling system device 8, and forces the cooling water to the sprue mold 3 after pouring. It is a control means for supplying.
なお、上述の各電磁弁9.10.25 〜28.34〜
36は第9図に示す鋳造タクトに対応してCPU制御さ
れる。In addition, each of the above-mentioned solenoid valves 9.10.25 ~ 28.34 ~
36 is controlled by the CPU in accordance with the casting takt shown in FIG.
前後一対の合せ金型で構成された湯口部金型3.3の一
方を第3図乃至第5図に、他方を第6図乃至第8図にそ
れぞれ示す。One of the sprue molds 3.3, which is composed of a pair of front and rear mating molds, is shown in FIGS. 3 to 5, and the other is shown in FIGS. 6 to 8, respectively.
上述の各湯口部金型3.3には、ジャケット29内へ延
びる復数のフィン37・・・を一体形成して、熱交換効
率の向上を図る一方、第6図乃至第8図に示す他方の湯
口部金型3には、湯口4内方中央部へ突出する突出部3
8と、この突出部38のジャケット29側に形成され、
該ジャケット29と連通する凹部39とを設けることで
、冷却性の向上を図っている。Each sprue mold 3.3 described above is integrally formed with a plurality of fins 37 extending into the jacket 29 in order to improve heat exchange efficiency. The other sprue part mold 3 has a protruding part 3 that protrudes toward the inner central part of the sprue 4.
8 and is formed on the jacket 29 side of this protrusion 38,
By providing a recess 39 that communicates with the jacket 29, cooling performance is improved.
図示実施例は上記の如く構成するものにして、以下作用
を説明する。The illustrated embodiment is constructed as described above, and its operation will be explained below.
注湯開始前の型締め完了信号により第2冷却系装置8の
電磁弁35.36を開弁してエア供給管32からインレ
ットパイプ30を介して湯口部金型3のジャケット29
内にエアを供給し、このジャケット29をエア溜として
用いる。The solenoid valves 35 and 36 of the second cooling system device 8 are opened in response to a mold clamping completion signal before the start of pouring, and the jacket 29 of the sprue mold 3 is supplied from the air supply pipe 32 through the inlet pipe 30.
This jacket 29 is used as an air reservoir.
次に注場開始信号により第1冷却系装置7の電磁弁9.
10.25〜28を開弁して、給水管11.12から常
温冷却水を供給する。Next, the solenoid valve 9 of the first cooling system device 7 is activated by the pouring field start signal.
10. Open valves 25 to 28 and supply normal temperature cooling water from water supply pipes 11.12.
なお、金型2は注湯前に所定の型温に制御する。Note that the mold temperature of the mold 2 is controlled to a predetermined mold temperature before pouring.
次に、注湯完了時に出力されるタイマ信号により第2冷
却系装置8の電磁弁35を閉弁すると共に、電磁弁34
を開弁して、給水管3lからインレットパイプ30を介
して湯口部金型3のジャケット29内に冷却水を供給す
る。Next, the solenoid valve 35 of the second cooling system device 8 is closed by the timer signal output when pouring is completed, and the solenoid valve 34 is closed.
The valve is opened and cooling water is supplied from the water supply pipe 3l through the inlet pipe 30 into the jacket 29 of the sprue part mold 3.
この電磁弁34の開弁による上述のジャケット29への
冷却水強制供給により、注湯後の湯口部の温度は第9図
に実線bで示すように凝固点1l50℃に対してより低
温の1000℃以下に効果的に冷却されるので、同湯口
部の冷却速度を高めることができる。このため、早期開
枠を可能として小物鋳造品の過冷却によるチル化を防止
することができ、また小物鋳造品の取出しタイミングに
悪影響を与えるのを確実に防止することができる効果が
ある。By forcefully supplying cooling water to the jacket 29 by opening the electromagnetic valve 34, the temperature at the sprue after pouring becomes 1000°C, which is lower than the freezing point of 1l50°C, as shown by the solid line b in Fig. 9. Since the water is effectively cooled down to below, the cooling rate of the sprue can be increased. Therefore, it is possible to open the frame early and prevent the small cast product from being chilled due to overcooling, and it is also possible to reliably prevent the timing of taking out the small cast product from being adversely affected.
なお、第9図の特性aは金型2の温度変化を示す。Note that characteristic a in FIG. 9 shows the temperature change of the mold 2.
次に、型開き信号により上述の第1および第2の各冷却
系装置7.8による冷却水供給を停止する。Next, the supply of cooling water by the first and second cooling system devices 7.8 is stopped in response to the mold opening signal.
なお、次サイクルにおける第2冷却系装置8のエア供給
により、上述のジャケット29内の冷却水は押出される
。Note that the cooling water in the jacket 29 described above is pushed out by the air supply from the second cooling system device 8 in the next cycle.
また、上記実施例の各電磁弁9,10.25〜28は、
金型の温度を検知する温度センサからの信号により、開
弁タイミング、開弁量等制御するようにしてもよい。Moreover, each electromagnetic valve 9, 10, 25 to 28 of the above embodiment is
The valve opening timing, valve opening amount, etc. may be controlled based on a signal from a temperature sensor that detects the temperature of the mold.
以上要するに湯口部まわりを独立して冷却する第2冷却
系装置8を設け、この装置8によるジャケット29への
冷却水を注湯時に停止制御し、注湯後直ちに強制供給制
御することで、注湯後の湯口部の冷却速度を高めて、小
物鋳造品の取出しタイミングに悪影響を与えるのを確実
に防止することができる効果がある。In short, by providing the second cooling system device 8 that independently cools the area around the sprue, and controlling the cooling water from this device 8 to stop flowing to the jacket 29 when pouring the molten metal, and controlling the forced supply immediately after pouring the pouring water, This has the effect of increasing the cooling rate of the sprue after hot water and reliably preventing adverse effects on the timing of taking out small cast products.
この発明の構成と、上述の実施例との対応において、
この発明の第1冷却系手段は、実施例の第1冷却系装[
7に対応し、
以下同様に、
第2冷却系手段は、第2冷却系装置8に対応し、制御手
段は、電磁弁34に対応するも、この発明は上述の実施
例の構成のみに限定されるものではない。In the correspondence between the configuration of the present invention and the embodiments described above, the first cooling system means of the present invention is the first cooling system device of the embodiments.
7, and similarly below, the second cooling system means corresponds to the second cooling system device 8, and the control means corresponds to the solenoid valve 34, but the present invention is limited to the configuration of the above-described embodiment. It is not something that will be done.
図面はこの発明の一実施例を示し、
第1図は鋳造用金型の冷却装置を示す系統図、第2図は
第1図の要部平面図、
第3図は湯口部金型の説明図、
第4図は第3図のA−A線矢視断面図、第5図は第3図
のB−B線矢視断面図、第6図は湯口部金型の説明図、
第7図は第6図のC−C線矢視断面図、第8図は第6図
のD−D線矢視断面図、第9図は鋳造タクトに対する各
部の温度変化を示す特性図である。
1・・・キャビティ 2・・・金 型3・・・湯
口部金型
4・・・湯
口
7・・・第1冷却系装置
8
・・第2冷却系装置
3
4・・・電磁弁
L<The drawings show an embodiment of the present invention, Fig. 1 is a system diagram showing a cooling device for a casting mold, Fig. 2 is a plan view of the main part of Fig. 1, and Fig. 3 is an explanation of the sprue part mold. Figure 4 is a cross-sectional view taken along the line A-A in Figure 3, Figure 5 is a cross-sectional view taken along the line B-B in Figure 3, Figure 6 is an explanatory diagram of the sprue mold, 6 is a cross-sectional view taken along the line C--C in FIG. 6, FIG. 8 is a cross-sectional view taken along the line D--D in FIG. 6, and FIG. 9 is a characteristic diagram showing temperature changes in various parts with respect to the casting tact. 1... Cavity 2... Mold Mold 3... Sprue part mold 4... Sprue 7... First cooling system device 8... Second cooling system device 3 4... Solenoid valve L<
Claims (1)
系手段と、 湯口部まわりを冷却制御する第2冷却系手段とを独立し
て設け、 上記第2冷却系手段に対して注湯時には湯口部金型への
冷却水の供給を停止し、注湯後には湯口部金型へ冷却水
を強制的に供給する制御手段を備えた鋳造用金型の冷却
装置。(1) A first cooling system means for controlling the cooling around the mold cavity and a second cooling system means for cooling the area around the sprue are independently provided, and when pouring into the second cooling system means, A casting mold cooling device comprising a control means for stopping the supply of cooling water to the sprue mold and forcibly supplying cooling water to the sprue mold after pouring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15132089A JPH0318453A (en) | 1989-06-13 | 1989-06-13 | Cooling device in die for casting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15132089A JPH0318453A (en) | 1989-06-13 | 1989-06-13 | Cooling device in die for casting |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0318453A true JPH0318453A (en) | 1991-01-28 |
Family
ID=15516055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15132089A Pending JPH0318453A (en) | 1989-06-13 | 1989-06-13 | Cooling device in die for casting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0318453A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05318073A (en) * | 1992-05-15 | 1993-12-03 | Honda Motor Co Ltd | Metallic mold casting method |
US9193675B2 (en) * | 2006-07-06 | 2015-11-24 | Polnox Corporation | Macromolecular antioxidants comprising differing antioxidant moieties: structures, methods of making and using the same |
-
1989
- 1989-06-13 JP JP15132089A patent/JPH0318453A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05318073A (en) * | 1992-05-15 | 1993-12-03 | Honda Motor Co Ltd | Metallic mold casting method |
US9193675B2 (en) * | 2006-07-06 | 2015-11-24 | Polnox Corporation | Macromolecular antioxidants comprising differing antioxidant moieties: structures, methods of making and using the same |
US9950990B2 (en) | 2006-07-06 | 2018-04-24 | Polnox Corporation | Macromolecular antioxidants comprising differing antioxidant moieties: structures, methods of making and using the same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100520561B1 (en) | A cooling device for die casting metallic pattern | |
WO1993011892A2 (en) | Casting of light metal alloys | |
JPH0318453A (en) | Cooling device in die for casting | |
US4616690A (en) | Process and apparatus for moulding ingots of ferro-alloys by chill casting in a cooled copper mould | |
JPH02192872A (en) | Die casting method | |
US3760864A (en) | Method of casting in thin-walled molds | |
JP3078755B2 (en) | Casting method and casting mold | |
JPH01228660A (en) | Temperature adjusting device for casting die | |
JPS6250217B2 (en) | ||
US2387803A (en) | Method of casting | |
JP4024092B2 (en) | Mold casting apparatus and method | |
JPS61123457A (en) | Cooler for molten metal in metallic mold for casting | |
JPH06126411A (en) | Device for casting cylinder block | |
JP2002079358A (en) | Metallic mold for forming aluminum wheel | |
JPS6132111B2 (en) | ||
JPH0744374Y2 (en) | Aluminum alloy casting mold | |
JPH03118952A (en) | Method for casting aluminum alloy cylinder block | |
JPH04138863A (en) | Low pressure casting device | |
JPH08206814A (en) | Metallic mold casting method | |
Lessiter | Chills: Solidification Trickery | |
JP3055048B2 (en) | Casting method in die casting | |
JPH08174148A (en) | Well structure of casting die | |
JPH01130838A (en) | Casting method for cast product forming chilling layer | |
Yamaguchi et al. | Cold Chamber Die Casting Machine | |
JPS61176465A (en) | Casting method |