WO2003037548A1 - Cooling device for casting molds - Google Patents

Cooling device for casting molds Download PDF

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Publication number
WO2003037548A1
WO2003037548A1 PCT/JP2002/011270 JP0211270W WO03037548A1 WO 2003037548 A1 WO2003037548 A1 WO 2003037548A1 JP 0211270 W JP0211270 W JP 0211270W WO 03037548 A1 WO03037548 A1 WO 03037548A1
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WO
WIPO (PCT)
Prior art keywords
cooling
pressure
water
cooling water
mold
Prior art date
Application number
PCT/JP2002/011270
Other languages
French (fr)
Japanese (ja)
Inventor
Shigeyoshi Komaki
Original Assignee
Ahresty Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ahresty Corporation filed Critical Ahresty Corporation
Priority to KR1020047006258A priority Critical patent/KR100939709B1/en
Publication of WO2003037548A1 publication Critical patent/WO2003037548A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B22C9/065—Cooling or heating equipment for moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2218—Cooling or heating equipment for dies

Definitions

  • the present invention relates to a mold cooling device used for die casting, resin molding, and the like, and more particularly, to cooling a mold by flowing cooling water through a cooling hole formed in the mold.
  • the present invention relates to a cooling device for a production die. Background art
  • a method of controlling (cooling) the mold temperature by flowing cooling water through a number of cooling holes formed in the mold is generally performed.
  • the cooling water When cooling the mold and controlling the mold temperature by flowing the cooling water through the cooling holes of the mold, the cooling water is always passed through all the cooling holes drilled in the mold during the manufacturing process.
  • Water is generally used, but intermittent water supply is used to intermittently supply cooling water to parts that are too cold to cool if water cooling is performed constantly.
  • High-pressure intermittent water that intermittently passes high-pressure cooling water in areas where cooling is insufficient with intermittent water because of the large amount of heat applied to it. Has been applied.
  • a cooling device for a manufacturing mold is a cooling device for a manufacturing die, which cools the mold by flowing cooling water through a plurality of cooling holes formed in the mold.
  • the low pressure water solenoid valve to be connected is connected in parallel, and the outlets of these high pressure water solenoid valve and low pressure water solenoid valve are connected to form a cooling water supply path.
  • the valve is characterized in that cooling water is supplied to the cooling hole of the mold through the cooling water supply path by independently controlling the low pressure water solenoid valve.
  • a high-pressure water discharge pump is provided so that high-pressure cooling water can be supplied stably to the high-pressure water solenoid valve, or an air purge for cooling water remaining inside the mold cooling holes is provided.
  • an air purge path for sending high-pressure air is provided for each cooling water supply path, and the air purge path and the cooling water supply path are merged, or a plurality of the cooling water supply paths are provided.
  • FIG. 1 is a circuit diagram showing a first embodiment of the present invention.
  • FIG. 2 is a circuit diagram showing a second embodiment of the present invention.
  • FIG. 3 is an explanatory diagram showing an example of a cooling pattern by the mold cooling device according to the present invention.
  • the mold cooling device A is composed of a pair of high-pressure water solenoid valves 1a, 1b, 1c, Id and low-pressure water solenoid valves 2a, 2b, 2c, 2d that are independent. It is basically composed of multiple cooling water supply paths 3a, 3b, 3c, and 3d, which are divided into three cooling water supply paths 3a, 3b, 3c, and 3d. They are configured with air purge paths 4a, 4b, 4c, and 4d, respectively.
  • the high-pressure water solenoid valves la, lb,... allow high-pressure cooling water with a pressure that can break the cooling water vapor film generated on the inner peripheral surface of the cooling hole formed in the mold to flow through.
  • Solenoid valve for In other words, when the molten metal is supplied into the mold cavity and the mold is at a high temperature (in the case of aluminum die-casting, the temperature is about 400 to 500 ° C during the injection process).
  • the cooling water that contacts the inner peripheral surface of the cooling hole evaporates rapidly and cools. A vapor film is formed on the inner peripheral surface of the cooling hole, and the cooling film is blocked by the vapor film and cannot directly contact the inner peripheral surface of the cooling hole. Pressure that can directly contact the inner peripheral surface of the cooling hole
  • the cooling water pressurized is called high-pressure cooling water.
  • the pressure of the cooling water (industrial water) in a normal factory is 0.5 to 0.5 MPa, which is called low-pressure cooling water in the present invention, and the low-pressure cooling water is an electromagnetic valve for low-pressure water. Through 2 to the mold cooling holes.
  • the pair of high-pressure water solenoid valves 1 a, lb,... and low-pressure water solenoid valves 2 a, 2 b,... are connected to the water supply path (cooling water supply port 5) 6
  • the outlets of these high-pressure water solenoid valves 1a, lb, ... and low-pressure water solenoid valves 2a, 2b, ... are connected to communication pipes 7a, 7b, 7c, 7 d to form independent cooling water supply paths 3 a, 3 b, 3 c, 3 d, and high-pressure water solenoid valves 1 a, lb, ... in each cooling water system
  • the cooling water is supplied into each cooling hole of the mold through each cooling water supply path 3a, 3b, ... I do.
  • four cooling water supply paths 3a, 3b, 3c and 3d are formed.
  • the solenoid valves for high-pressure water 1 a, lb,... and solenoid valves for low-pressure water 2 a, 2 b,..., and solenoid valves for air purging 11 a, lib, 11 c, 11 d described later are connected to each cooling water system.
  • a programmable controller may be used for the sequence circuit of the cooling device A.
  • a cooling water filter 8 and a check valve 9 are provided in the water supply path 6, and between the high pressure water solenoid valves la, lb, ... and the low pressure water solenoid valves 2a, 2b, ... Install a pressure regulating valve 10 to reduce the pressure of the high-pressure cooling water to low-pressure cooling water.
  • air purge paths 4a, 4b, 4c, 4d are provided corresponding to the cooling water supply paths 3a, 3b, ..., respectively, and are provided in the air purge paths 4a, 4b, ..., respectively.
  • the air purging solenoid valves 1 la, lib, ... are configured to be independently controllable.
  • the air purge solenoid valve 1 1a, lib,... is used for cooling water remaining inside the cooling hole when the cooling water continues to flow through the cooling hole of the mold and the mold becomes too cold. This is for stopping the cooling of the mold by air purging, and high-pressure air is sent into the cooling holes of the mold through the air purge paths 4a, 4b,.
  • one cooling system (piping) 12a, 12b, 12c, and 12d can supply cooling water and high-pressure air to the inside of the mold cooling hole.
  • the check valves 13 a, 13 b,..., 13 a, 13 ′ b,... used at this time are cooling water and air at a pressure lower than the cracking pressure. It is preferable to use a spring-type check valve which is maintained in the paths 3a, 3b, ... and the air purge paths 4a, 4b, .... Then, the cooling water and air can be switched quickly and alternately and easily pumped.
  • the cooling water supply pressure (line pressure) in the water supply path 6 connected to the water supply source side (cooling water supply port 5) is lower than the target high-pressure cooling water pressure
  • the cooling water An auxiliary pump is installed before and after the supply port 5, or as in the embodiment shown in Fig. 2, the high-pressure water discharge port is provided on the high-pressure water solenoid valve 1a, lb, ... side of the water supply path 6. It is preferable to connect the amplifier 14. If the high-pressure water discharge pump 14 is installed, high-pressure cooling water can be stably supplied to the high-pressure water solenoid valves la, lb, ....
  • the high-pressure water discharge pump 14 used at this time a commonly used well-known pump can be used.
  • a cylinder-type pump operated by high-pressure air is used.
  • a piston 14c connected by one biston rod 14b is installed in two cylinder chambers 14a arranged coaxially.
  • the head side of 4a is a cooling water storage chamber 14d for storing cooling water
  • the other cylinder chamber is an air chamber, and the cooling water is stored by the action of high-pressure air supplied to the air chamber.
  • the cooling water in the chamber 14d can be sent at a high discharge pressure, and the cooling water can be cooled without any special cooling device.
  • the discharge operation of the high-pressure cooling water is performed every one discharge operation of the machine.
  • Reference numeral 15 in the figure is a solenoid valve for operating the high-pressure water discharge pump 14, and reference numeral 16 is connected to the air supply source 17 to supply high-pressure air to the high-pressure water discharge pump 14.
  • An air pressure regulator for supply is a solenoid valve for operating the high-pressure water discharge pump 14, and reference numeral 16 is connected to the air supply source 17 to supply high-pressure air to the high-pressure water discharge pump 14.
  • An air pressure regulator for supply.
  • the solenoid valves for high-pressure water la, lb,... and the solenoid valves for low-pressure water 2 a, for the cooling water supply paths 3 a, 3 b, ... in each cooling water system The operation of the air purge solenoid valves 11a, lib, ... of the air purge paths 4a, 4b, ... so that the desired cooling pattern is obtained according to the shape of the mold to be cooled, etc. Set in advance.
  • a start signal is input to the cooling device A at the timing of the injection operation of the machine.
  • cooling water When the cooling water is supplied, cooling water of a predetermined pressure is drawn into the cooling device A from the water supply source side (cooling water supply port 5) through the water supply path 6, and at the same time, each cooling water supply path 3a, 3b ,... Solenoid valves for high-pressure water la, lb,... and solenoid valves for low-pressure water 2 a,-2 b, ... and solenoid valves for air purge of air purge paths 4 a, 4 b,... 1 1 a, lib, Starts operation according to the programmed settings.
  • high-pressure cooling water having a pressure to break the vapor film generated on the inner peripheral surface of the cooling hole of the mold passes through the cooling water supply paths 3 a, 3 b,.... Through the cooling hole of the mold. Then, the high-pressure cooling water directly contacts the inner peripheral surface of the cooling hole without being disturbed by the vapor film generated on the inner peripheral surface of the cooling hole, and the mold is rapidly cooled. Also, from the low-pressure water solenoid valves 2a, 2b,..., The low-pressure cooling water adjusted to a predetermined low pressure by the pressure regulating valve 10 passes through the cooling water supply paths 3a, 3b,. Water is passed through the cooling holes to cool the mold relatively slowly.
  • the second implementation shown in Fig. 2 Like the mold cooling device A according to the example, the high-pressure water discharge pump 14 and the solenoid valve 15 attached to the pump 14 are installed (built-in).
  • the solenoid valve 15 of the high-pressure water discharging pump is turned on, and the air pressure regulation is performed.
  • the air the pressure of which has been adjusted by the regulator 16, is supplied to the high-pressure water discharge pump 14.
  • the piston 14c of the high-pressure water discharge pump 14 operates to discharge the high-pressure cooling water, and the cooling water stored in the cooling water storage chamber 14d is supplied to the high-pressure water solenoid valves la and lb. , ... are passed through the cooling water supply passages 3a, 3b, ... into the cooling holes of the mold.
  • the mold cooling device that operates in this manner, the high-pressure water solenoid valves la, 1 b, ... and the low-pressure water solenoid valves 2 a, 2 b, ... in the cooling water supply paths 3 a, 3 b, ...
  • the air purge solenoid valves 11a, lib, ... of the air purge paths 4a, 4b, ... for each cooling system 12a, 12b, ... the cooling pattern (Fig. 3) As described in 1) to (4), it is possible to cool desired portions of a large number of cooling holes formed in the mold in a desired cooling pattern.
  • the cooling pattern (1) for example, when the temperature of the mold suddenly rises due to the heat of the molten metal supplied into the mold cavity, a cooling start signal must be input in accordance with the timing.
  • the high-pressure water solenoid valves la, 1 b,... of the cooling water supply paths 3 a, 3 b,... are turned on for a predetermined time, and high-pressure cooling water is supplied from the cooling water supply paths 3 a, 3 b,... to the cooling system ( Piping) Through 1 2a, 1 2b,..., water is passed through the cooling hole of the mold to cool the mold securely and quickly, and then for high-pressure water to prevent the mold from over cooling.
  • the air purge solenoid valves 1 1a, lib After turning off the low pressure water solenoid valves 2a, 2b,..., to prevent overcooling, the air purge solenoid valves 1 1a, lib, The turns on to air purge the cooling water remaining within the cooling holes, a pattern so as to stop the cooling by the cooling water.
  • the cooling pattern (3) can be configured such that the cooling start signal is input so that the low pressure water solenoid valves 2a, 3a, 3b,. Turn on 2 b,... for a predetermined time to allow low-pressure cooling water to flow through the cooling holes of the mold, and then to prevent the mold from cooling too much, solenoid valves for low-pressure water 2 a, 2 b,... After turning off the air, the air purge solenoid valves 11a, lib, ... are turned on to air purge the cooling water remaining inside the cooling holes, and the cooling by the cooling water is stopped.
  • the high pressure water solenoid valves la, 1b, ... of the cooling water supply paths 3a, 3b, ... are turned on for a predetermined time by inputting a cooling start signal, and the high pressure cooling water is cooled.
  • the cooling system (piping) 12a, 12b,... After supplying water from the supply paths 3a, 3b,... through the cooling system (piping) 12a, 12b,... to the inside of the cooling holes of the mold to quickly cool the mold, Turn off valves la, lb,... and turn on low pressure water solenoid valves 2 a, 2 b,... After turning on for a predetermined time, low-pressure cooling water flows through the inside of the cooling hole to cool the mold.
  • the mold cooling device according to the present invention is configured as described above, even when the cooling pattern is different depending on the cooling part of the mold or when a new cooling system is added by replacing the mold. Only one cooling device needs to be installed around the machine.
  • the desired locations of many cooling holes drilled in the mold can be cooled in a desired cooling pattern. Therefore, a desired cooling pattern can be selected with a single switch.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

Even in the case where the cooling pattern is changed according to the region of the mold to be cooled or where the mold is exchanged to add a new cooling system, only a single mold cooling device disposed around the casting machine suffices, and a change to a desired cooling pattern for each region of the mold to be cooled can be easily made by the use of a single switch. To this end, in the invention, high pressure water solenoid valves (1a, 1b...) for passing high pressure cooling water and low pressure water solenoid valves (2a, 2b...) for passing low pressure cooling water are connected in parallel with a water feed path (6) connected to a water supply source (5), the outlets of these high pressure water solenoid valves and low pressure water solenoid valves being connected together to provide cooling water feed paths (3a, 3b,...), the high pressure water solenoid valves and low pressure water solenoid valves in the cooling water feed paths being independently controlled to feed cooling water to the cooling hole in the mold through the cooling water feed paths.

Description

明 細 書 錶造用金型の冷却装置 技術分野  Description 冷却 Cooling equipment for manufacturing dies Technical field
本発明は、 ダイカスト铸造や樹脂成形等に用いられる金型の冷却装置に関 し、 更に詳しくは、 金型に穿設された冷却穴内に冷却水を流通させることに より金型を冷却するようにした铸造用金型の冷却装置に関するものである。 背景技術  The present invention relates to a mold cooling device used for die casting, resin molding, and the like, and more particularly, to cooling a mold by flowing cooling water through a cooling hole formed in the mold. The present invention relates to a cooling device for a production die. Background art
健全な铸造品を得るためには、 金型キヤビティ内に供給された溶湯の熱を 受けて高温になった金型を铸造品の形状等に応じて適正に冷却して金型温度 を常時適正に制御する必要があり、 そのために従来からいろいろな金型温度 の制御方法が提案されている。  In order to obtain a sound product, the temperature of the mold, which has become high due to the heat of the molten metal supplied into the mold cavity, is appropriately cooled according to the shape of the product, and the mold temperature is always appropriate. Therefore, various mold temperature control methods have been proposed.
その中で、 金型に穿設された多数の冷却穴内に冷却水を流通させることに より金型温度を制御する （冷却する） 方法が一般的に行なわれている。  Among them, a method of controlling (cooling) the mold temperature by flowing cooling water through a number of cooling holes formed in the mold is generally performed.
金型の冷却穴内に冷却水を流通させることにより金型を冷却し金型温度を 制御する場合、 金型に穿設されたすべての冷却穴内に铸造工程中ずつと冷却 水を流通させる常時通水が一般的であるが、 常時通水冷却を行なうと冷えす ぎてしまう部位には冷却水を間欠的に通水する間欠通水が適用され、 そして、 铸造品のボリュームが大きくて金型に与える熱量が多いため間欠通水では冷 却が不十分な部位には、 冷却穴の内周面に生じる冷却水の蒸気膜を打ち破る 高圧の冷却水を間欠的に通水する高圧間欠通水が適用されている。  When cooling the mold and controlling the mold temperature by flowing the cooling water through the cooling holes of the mold, the cooling water is always passed through all the cooling holes drilled in the mold during the manufacturing process. Water is generally used, but intermittent water supply is used to intermittently supply cooling water to parts that are too cold to cool if water cooling is performed constantly. High-pressure intermittent water that intermittently passes high-pressure cooling water in areas where cooling is insufficient with intermittent water because of the large amount of heat applied to it. Has been applied.
しかし、 これら従来の金型の冷却方法では、 金型の冷却部位によって冷却 パターンを違える場合や金型を交換して新しく冷却系統を追加する場合には、 鎵造機の周りに複数台の冷却装置を設置する必要があった。 本発明はこのような従来の不具合に鑑みてなされたものであり、 金型の冷 却部位によつて冷却パターンを違える場合や金型を交換して新しく冷却系統 を追加する場合であっても、 金型冷却装置として铸造機の周りに 1台を設置 するだけで済むと共に、 スィツチひとつで金型の冷却部位ごとに所望の冷却 パターンに簡便に変更することが可能な錡造用金型の冷却装置を提供するこ とを目的とする。 上記目的を達成する本発明の鎳造用金型の冷却装置は、 金型に穿設された 複数個の冷却穴内に冷却水を流通させることにより金型を冷却する铸造用金 型の冷却装置であって、 給水源側に接続される給水径路に金型冷却穴の内周 面に生じる蒸気膜を打ち破る圧力を有する高圧冷却水を通水させる高圧水用 電磁弁と低圧冷却水を通水させる低圧水用電磁弁を並列に接続すると共にこ れら高圧水用電磁弁と低圧水用電磁弁の出口同士を接続して冷却水供給経路 となし、 該冷却水供給経路の高圧水用電磁弁おょぴ低圧水用電磁弁をそれぞ れ独立して制御することにより冷却水供給経路を通して金型の冷却穴に冷却 水を供給するようにしたことを特徴としたものである。 However, with these conventional mold cooling methods, the cooling When changing the pattern or replacing the mold and adding a new cooling system, it was necessary to install multiple cooling devices around the machine. The present invention has been made in view of such conventional inconveniences, even when the cooling pattern is different depending on the cooling part of the mold or when a new cooling system is added by replacing the mold. It is only necessary to install one unit around the machine as a mold cooling device, and it is possible to easily change the cooling pattern to a desired cooling pattern for each mold cooling area with a single switch. The purpose is to provide a cooling device. In order to achieve the above object, a cooling device for a manufacturing mold according to the present invention is a cooling device for a manufacturing die, which cools the mold by flowing cooling water through a plurality of cooling holes formed in the mold. A solenoid valve for high-pressure water and a low-pressure cooling water through which high-pressure cooling water having a pressure to break a steam film generated on the inner peripheral surface of the mold cooling hole flows through a water supply path connected to the water supply source side. The low pressure water solenoid valve to be connected is connected in parallel, and the outlets of these high pressure water solenoid valve and low pressure water solenoid valve are connected to form a cooling water supply path. The valve is characterized in that cooling water is supplied to the cooling hole of the mold through the cooling water supply path by independently controlling the low pressure water solenoid valve.
この際、 高圧水用電磁弁に高圧の冷却水を安定的に供給し得るように高圧 水吐出用ポンプを備えたり、 金型冷却穴の内部に残っている冷却水をエアパ ージするための高圧エアを送るエアパージ径路を各冷却水供給経路ごとに備 えると共に、 エアパージ径路と冷却水供給経路とを合流させたり、 前記冷却 水供給経路を複数系統備えることが好ましい。 図面の簡単な説明 At this time, a high-pressure water discharge pump is provided so that high-pressure cooling water can be supplied stably to the high-pressure water solenoid valve, or an air purge for cooling water remaining inside the mold cooling holes is provided. Preferably, an air purge path for sending high-pressure air is provided for each cooling water supply path, and the air purge path and the cooling water supply path are merged, or a plurality of the cooling water supply paths are provided. BRIEF DESCRIPTION OF THE FIGURES
第 1図は、 本発明の第 1実施例を示す回路図である。  FIG. 1 is a circuit diagram showing a first embodiment of the present invention.
第 2図は、 本発明の第 2実施例を示す回路図である。  FIG. 2 is a circuit diagram showing a second embodiment of the present invention.
第 3図は、 本発明に係る金型冷却装置による冷却パターンの例を示す説明 図である。 発明を実施するための最良の形態  FIG. 3 is an explanatory diagram showing an example of a cooling pattern by the mold cooling device according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明の具体的な好適実施例を図面を参照しながら詳細に説明する が、 本発明は図示実施例のものに限定されるものではなく、 いろいろなバリ エーションが考えられる。  Hereinafter, specific preferred embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the illustrated embodiments, and various variations are conceivable.
また、 全図面を通して同様な構成部材には同じ符号を付して、 重複する説 明は省略する。  In addition, the same reference numerals are given to the same constituent members throughout the drawings, and the overlapping description will be omitted.
本発明に係る金型冷却装置 Aは、 ペアとなる高圧水用電磁弁 1 a， 1 b， 1 c , I dと低圧水用電磁弁 2 a, 2 b, 2 c, 2 dとで独立した複数系統 の冷却水供給経路 3 a， 3 b, 3 c， 3 dを構成してなることを基本とし、 これに、 各冷却水供給経路 3 a, 3 b, 3 c, 3 dごとにそれぞれエアパー ジ経路 4 a, 4 b, 4 c， 4 dをそなえて構成される。  The mold cooling device A according to the present invention is composed of a pair of high-pressure water solenoid valves 1a, 1b, 1c, Id and low-pressure water solenoid valves 2a, 2b, 2c, 2d that are independent. It is basically composed of multiple cooling water supply paths 3a, 3b, 3c, and 3d, which are divided into three cooling water supply paths 3a, 3b, 3c, and 3d. They are configured with air purge paths 4a, 4b, 4c, and 4d, respectively.
高圧水用電磁弁 l a, l b， …は、 金型に穿設された冷却穴の内周面に生 じる冷却水の蒸気膜を打ち破ることが可能な圧力を有する高圧冷却水を通水 させるための電磁弁である。 すなわち、 金型のキヤビティ内に溶湯が供給さ れ金型が高温になっている状態の時 （アルミダイカスト錶造では、 射出工程 中におよそ 400〜500°C位になる。） に金型に穿設された冷却穴の内部に 冷却水を通水すると、 冷却穴の内周面に接触した冷却水が急激に蒸発して冷 却穴の内周面に蒸気膜が形成され、 その蒸気膜に阻まれて冷却水が冷却穴の 内周面に直接接触することが出来なくなって冷却効果が低下してしまうので、 その蒸気膜を打ち破って冷却穴の内周面に直接接触することが可能な圧力The high-pressure water solenoid valves la, lb,… allow high-pressure cooling water with a pressure that can break the cooling water vapor film generated on the inner peripheral surface of the cooling hole formed in the mold to flow through. Solenoid valve for In other words, when the molten metal is supplied into the mold cavity and the mold is at a high temperature (in the case of aluminum die-casting, the temperature is about 400 to 500 ° C during the injection process). When cooling water flows through the drilled cooling hole, the cooling water that contacts the inner peripheral surface of the cooling hole evaporates rapidly and cools. A vapor film is formed on the inner peripheral surface of the cooling hole, and the cooling film is blocked by the vapor film and cannot directly contact the inner peripheral surface of the cooling hole. Pressure that can directly contact the inner peripheral surface of the cooling hole
(冷却水として工業用水を使用レた場合、 0. 7MP a以上） に加圧された 冷却水を高圧冷却水という。 (When industrial water is used as the cooling water, 0.7 MPa or more) The cooling water pressurized is called high-pressure cooling water.
ちなみに、 通常の工場内の冷却水 （工業用水） の圧力は 0. '1〜0. 5M P aであり、 本発明ではこれを低圧冷却水といい、 低圧冷却水は低圧水用電 磁弁 2を通して金型の冷却穴に送られる。  Incidentally, the pressure of the cooling water (industrial water) in a normal factory is 0.5 to 0.5 MPa, which is called low-pressure cooling water in the present invention, and the low-pressure cooling water is an electromagnetic valve for low-pressure water. Through 2 to the mold cooling holes.
そうして、 ペアとなる高圧水用電磁弁 1 a， l b， …と低圧水用電磁弁 2 a, 2 b, …を、 給水源側 （冷却水供給口 5) に接続される給水径路 6に対 して並列に接続すると共に、 これら高圧水用電磁弁 1 a, l b， …と低圧水 用電磁弁 2 a， 2 b, …の出口同士を連通パイプ 7 a, 7 b， 7 c, 7 dを 介して接続せしめて、 独立した複数系統の冷却水供給経路 3 a， 3 b, 3 c， 3 dを形成し、 各冷却水系統における高圧水用電磁弁 1 a， l b， …と低圧 •水用電磁弁 2 a， 2 b, …をそれぞれ独立して制御することにより、 各冷却 水供給経路 3 a, 3 b, …を通して冷却水を金型の各冷却穴内に供給するよ うにする。 ちなみに、 図示実施例では 4系統の冷却水供給経路 3 a， 3 b, 3 c, 3 dを开成してある。  Then, the pair of high-pressure water solenoid valves 1 a, lb,… and low-pressure water solenoid valves 2 a, 2 b,… are connected to the water supply path (cooling water supply port 5) 6 And the outlets of these high-pressure water solenoid valves 1a, lb, ... and low-pressure water solenoid valves 2a, 2b, ... are connected to communication pipes 7a, 7b, 7c, 7 d to form independent cooling water supply paths 3 a, 3 b, 3 c, 3 d, and high-pressure water solenoid valves 1 a, lb, ... in each cooling water system By controlling the low pressure • water solenoid valves 2a, 2b, ... independently, the cooling water is supplied into each cooling hole of the mold through each cooling water supply path 3a, 3b, ... I do. Incidentally, in the illustrated embodiment, four cooling water supply paths 3a, 3b, 3c and 3d are formed.
各冷却水系統における高圧水用電磁弁 1 a， l b, …と低圧水用電磁弁 2 a, 2 b, …および後述するエアパージ用電磁弁 1 1 a, l i b, 1 1 c, 1 1 dをそれぞれ独立して制御する手段としては、 例えば、 冷却装置 Aのシ 一ケンス回路にプログラマブルコントローラを用いることが考えられる。  The solenoid valves for high-pressure water 1 a, lb,… and solenoid valves for low-pressure water 2 a, 2 b,…, and solenoid valves for air purging 11 a, lib, 11 c, 11 d described later are connected to each cooling water system. As means for controlling each independently, for example, a programmable controller may be used for the sequence circuit of the cooling device A.
尚、 給水径路 6には冷却水用フィルタ 8やチェック弁 9を設け、 高圧水用 電磁弁 l a， l b， …と低圧水用電磁弁 2 a， 2 b, …の入口側の間には、 高圧冷却水の圧力を低圧冷却水に減圧するための圧力調整弁 1 0を設置して める。 A cooling water filter 8 and a check valve 9 are provided in the water supply path 6, and between the high pressure water solenoid valves la, lb, ... and the low pressure water solenoid valves 2a, 2b, ... Install a pressure regulating valve 10 to reduce the pressure of the high-pressure cooling water to low-pressure cooling water.
また、 各冷却水供給経路 3 a, 3 b, …にそれぞれ対応させてエアパージ 経路 4 a， 4 b， 4 c, 4 dを設け、 各エアパージ径路 4 a， 4 b, …に設 けられたエアパージ用電磁弁 1 l a, l i b, …をそれぞれ独立して制御可 能なように構成する。 エアパージ用電磁弁 1 1 a， l i b, …は、 金型の冷 却穴内に冷却水を通水し続けると金型が冷え過ぎてしまうような場合に、 冷 却穴の内部に残った冷却水をエアパージすることにより金型の冷却を停止さ せるためのものであり、 エアパージ経路 4 a, 4 b, …を通して金型の冷却 穴内部に高圧エアを送るようにする。  In addition, air purge paths 4a, 4b, 4c, 4d are provided corresponding to the cooling water supply paths 3a, 3b, ..., respectively, and are provided in the air purge paths 4a, 4b, ..., respectively. The air purging solenoid valves 1 la, lib, ... are configured to be independently controllable. The air purge solenoid valve 1 1a, lib,… is used for cooling water remaining inside the cooling hole when the cooling water continues to flow through the cooling hole of the mold and the mold becomes too cold. This is for stopping the cooling of the mold by air purging, and high-pressure air is sent into the cooling holes of the mold through the air purge paths 4a, 4b,.
この際、 1つの冷却系統 （配管） 1 2 a， 1 2 b， 1 2 c, 1 2 dでもつ て金型冷却穴の内部に冷却水と高圧エアとを供給することができるように、 冷却水供給経路 3 a, 3 b, …とエアパージ経路 4 a, 4 b, …を先端部分 でチェック弁 1 3 a , 1 3 b, 1 3 c , 1 3 dと 1 3， a , 1 3 ' b , 1 3 ' c, 1 3 ' dを介して合流させることが好ましい。 この時に使用するチ エック弁 1 3 a， 1 3 b, ···、 1 3， a , 1 3 ' b, …としては、 クラツキ ング圧力より低い圧力の冷却水とエアがそれぞれの冷却水供給経路 3 a, 3 b， …とエアパージ経路 4 a， 4 b, …に維持されるようなバネ式のチエツ ク弁を用いることが好ましい。 そうすれば、 冷却水とエアを俊敏に切り換え 交互に簡便に圧送することができるようになる。  At this time, one cooling system (piping) 12a, 12b, 12c, and 12d can supply cooling water and high-pressure air to the inside of the mold cooling hole. Check valves 13a, 13b, 13c, 13d and 13a, 13a, 13b with cooling water supply paths 3a, 3b, ... and air purge paths 4a, 4b, ... It is preferred to join via 'b, 13'c, 13'd. The check valves 13 a, 13 b,..., 13 a, 13 ′ b,… used at this time are cooling water and air at a pressure lower than the cracking pressure. It is preferable to use a spring-type check valve which is maintained in the paths 3a, 3b, ... and the air purge paths 4a, 4b, .... Then, the cooling water and air can be switched quickly and alternately and easily pumped.
また、 給水源側 （冷却水供給口 5) に接続される給水径路 6の冷却水の給 水圧力（ライン圧）が、 目的とする高圧冷却水の圧力よりも低い場合には、 冷 却水供給口 5の前後に補助ポンプを設置したり、 或いは図 2に示した実施例 のごとく、 給水径路 6の高圧水用電磁弁 1 a, l b， …側に高圧水吐出用ポ ンプ 1 4を接続することが好ましい。 高圧水吐出用ポンプ 1 4を設置すれば、 高圧水用電磁弁 l a， l b , …に高圧の冷却水を安定的に供給し得るように なる。 If the cooling water supply pressure (line pressure) in the water supply path 6 connected to the water supply source side (cooling water supply port 5) is lower than the target high-pressure cooling water pressure, the cooling water An auxiliary pump is installed before and after the supply port 5, or as in the embodiment shown in Fig. 2, the high-pressure water discharge port is provided on the high-pressure water solenoid valve 1a, lb, ... side of the water supply path 6. It is preferable to connect the amplifier 14. If the high-pressure water discharge pump 14 is installed, high-pressure cooling water can be stably supplied to the high-pressure water solenoid valves la, lb, ....
この時に使用する高圧水吐出用ポンプ 1 4としては、 通常用いられる周知 のポンプを使用することができるが、 図示実施例のものは、 高圧エアで動作 するシリンダ式のポンプを用いている。 このシリンダ式のポンプは、 同軸状 に配置された 2個のシリンダ室 1 4 a内に 1本のビストンロッド 1 4 bで連 結されたピス トン 1 4 cを設置し、 一方のシリンダ室 1 4 aのへッド側を冷 却水を溜めておくための冷却水貯留室 1 4 dとし、 それ以外のシリンダ室内 をエア室となし、 エア室に供給する高圧エアの作用により冷却水貯留室 1 4 d内の冷却水を高い吐出圧力でもって送液できると共に、 格別に冷却装置を 介在設置せずとも冷却水を冷却することが出来るようにしたものである。 こ の高圧水吐出用ポンプ 1 4の場合、 高圧冷却水の吐出動作は、 铸造機の 1射 出動作ごとに行なわれる。  As the high-pressure water discharge pump 14 used at this time, a commonly used well-known pump can be used. In the illustrated embodiment, a cylinder-type pump operated by high-pressure air is used. In this cylinder type pump, a piston 14c connected by one biston rod 14b is installed in two cylinder chambers 14a arranged coaxially. The head side of 4a is a cooling water storage chamber 14d for storing cooling water, and the other cylinder chamber is an air chamber, and the cooling water is stored by the action of high-pressure air supplied to the air chamber. The cooling water in the chamber 14d can be sent at a high discharge pressure, and the cooling water can be cooled without any special cooling device. In the case of the high-pressure water discharge pump 14, the discharge operation of the high-pressure cooling water is performed every one discharge operation of the machine.
尚、 図中符号 1 5は、 高圧水吐出用ポンプ 1 4を動作させるための電磁弁 であり、 符号 1 6はエア供給源 1 7に接続され高圧水吐出用ポンプ 1 4に高 圧エアを供給するためのエア圧力調整器である。  Reference numeral 15 in the figure is a solenoid valve for operating the high-pressure water discharge pump 14, and reference numeral 16 is connected to the air supply source 17 to supply high-pressure air to the high-pressure water discharge pump 14. An air pressure regulator for supply.
次に、 図 1に示した第 1実施例に係る金型冷却装置 Aの動作を説明する。 冷却装置 Aのシーケンス回路にプログラマブルコントローラ等を用いて、 各冷却水系統における冷却水供給経路 3 a , 3 b , …の高圧水用電磁弁 l a， l b , …および低圧水用電磁弁 2 a , 2 b , …と、 エアパージ経路 4 a， 4 b， …のエアパージ用電磁弁 1 1 a , l i b , …の動作を、 冷却する金型の 形状等に応じて目的とする冷却パターンとなるように予め設定しておく。  Next, the operation of the mold cooling device A according to the first embodiment shown in FIG. 1 will be described. Using a programmable controller or the like in the sequence circuit of the cooling device A, the solenoid valves for high-pressure water la, lb,… and the solenoid valves for low-pressure water 2 a, for the cooling water supply paths 3 a, 3 b, ... in each cooling water system The operation of the air purge solenoid valves 11a, lib, ... of the air purge paths 4a, 4b, ... so that the desired cooling pattern is obtained according to the shape of the mold to be cooled, etc. Set in advance.
铸造機の射出動作のタイミングに合わせて冷却装置 Aにスタート信号が入 力されると、 給水源側 （冷却水供給口 5) から所定圧力の冷却水が給水径路 6を通って冷却装置 Aの内部に呼び込まれ、 同時に、 各冷却水供給経路 3 a， 3 b, …の高圧水用電磁弁 l a, l b, …と低圧水用電磁弁 2 a，- 2 b, ··· およびエアパージ経路 4 a, 4 b， …のエアパージ用電磁弁 1 1 a， l i b, …がプログラムされた設定に従って動作を開始する。 すると、 高圧水用電磁 弁 l a， l b, …からは、 金型の冷却穴の内周面に生じる蒸気膜を打ち破る 圧力を有する高圧冷却水が冷却水供給経路 3 a, 3 b, …を通って金型の冷 却穴内部に通水される。 すると、 冷却穴の内周面に発生する蒸気膜に邪魔さ れることなく高圧冷却水が冷却穴の内周面に直接接触し、 金型が急速に冷却 されるようになる。 また、 低圧水用電磁弁 2 a， 2 b, …からは、 圧力調整 弁 10で所定の低圧に調整された低圧冷却水が冷却水供給経路 3 a, 3 b， …を通って金型の冷却穴内部に通水されて、 金型が比較的ゆつくりと冷却さ れる。 ス タ ー ト A start signal is input to the cooling device A at the timing of the injection operation of the machine. When the cooling water is supplied, cooling water of a predetermined pressure is drawn into the cooling device A from the water supply source side (cooling water supply port 5) through the water supply path 6, and at the same time, each cooling water supply path 3a, 3b ,… Solenoid valves for high-pressure water la, lb,… and solenoid valves for low-pressure water 2 a,-2 b, ... and solenoid valves for air purge of air purge paths 4 a, 4 b,… 1 1 a, lib, Starts operation according to the programmed settings. Then, from the high-pressure water solenoid valves la, lb,…, high-pressure cooling water having a pressure to break the vapor film generated on the inner peripheral surface of the cooling hole of the mold passes through the cooling water supply paths 3 a, 3 b,…. Through the cooling hole of the mold. Then, the high-pressure cooling water directly contacts the inner peripheral surface of the cooling hole without being disturbed by the vapor film generated on the inner peripheral surface of the cooling hole, and the mold is rapidly cooled. Also, from the low-pressure water solenoid valves 2a, 2b,..., The low-pressure cooling water adjusted to a predetermined low pressure by the pressure regulating valve 10 passes through the cooling water supply paths 3a, 3b,. Water is passed through the cooling holes to cool the mold relatively slowly.
一方、 低圧冷却水を通水し続けると金型が冷え過ぎてしまう恐れがある場 合には、 低圧冷却水の通水を停止させた後にエアパージ用電磁弁 1 1 a， 1 l b, …から高圧のエアをエアパージ経路 4 a, 4 b, …を通して冷却穴内 に送ることにより冷却穴内の冷却水をエアパージして、 冷却水による冷却を 停止させる。  On the other hand, if there is a risk that the mold will become too cold if the low-pressure cooling water continues to flow, stop the low-pressure cooling water flow and then turn on the air purge solenoid valves 11 a, 1 lb,…. By sending high-pressure air into the cooling holes through the air purge paths 4a, 4b, ..., the cooling water in the cooling holes is air purged, and cooling by the cooling water is stopped.
給水源側 （冷却水供給口 5) に接続される給水径路 6の冷却水の給水圧力 (ライン圧）が目的とする高圧冷却水の圧力より低い場合には、 図 2に示した 第 2実施例に係る金型冷却装置 Aのように、 高圧水吐出用ポンプ 14やそれ に付属する電磁弁 15等を設備（内蔵）させる。  If the supply pressure (line pressure) of the cooling water in the water supply path 6 connected to the water supply source side (cooling water supply port 5) is lower than the target high-pressure cooling water pressure, the second implementation shown in Fig. 2 Like the mold cooling device A according to the example, the high-pressure water discharge pump 14 and the solenoid valve 15 attached to the pump 14 are installed (built-in).
この第 2実施例の場合、 スタート信号が入力されて高圧冷却水を使用する 冷却系統があると、 高圧水吐出用ポンプの電磁弁 15がオンし、 エア圧力調 整器 1 6で圧力調整されたエアが高圧水吐出用ポンプ 14に供給される。 す ると、 高圧水吐出用ポンプ 14のピストン 14 cが動作して高圧冷却水の吐 出動作が行なわれ、 冷却水貯留室 14 dに貯留された冷却水が高圧水用電磁 弁 l a， l b, …から冷却水供給経路 3 a, 3 b, …を通って金型の冷却穴 内部に通水される。 そして、 高圧冷却水の吐出が必要なくなると、 電磁弁 1 5がオフして高圧水吐出用ポンプ 14のピストン 1 4 cが元の位置に戻り、 給水径路 6から冷却水貯留室 14 d内に冷却水が供給される。 In the case of the second embodiment, if a start signal is input and there is a cooling system that uses high-pressure cooling water, the solenoid valve 15 of the high-pressure water discharging pump is turned on, and the air pressure regulation is performed. The air, the pressure of which has been adjusted by the regulator 16, is supplied to the high-pressure water discharge pump 14. Then, the piston 14c of the high-pressure water discharge pump 14 operates to discharge the high-pressure cooling water, and the cooling water stored in the cooling water storage chamber 14d is supplied to the high-pressure water solenoid valves la and lb. , ... are passed through the cooling water supply passages 3a, 3b, ... into the cooling holes of the mold. Then, when the discharge of the high-pressure cooling water becomes unnecessary, the solenoid valve 15 is turned off, and the piston 14 c of the high-pressure water discharging pump 14 returns to the original position, and is moved from the water supply path 6 into the cooling water storage chamber 14 d. Cooling water is supplied.
この様に動作する本金型冷却装置によれば、 冷却水供給経路 3 a， 3 b, …の高圧水用電磁弁 l a， 1 b, …と低圧水用電磁弁 2 a , 2 b, …および エアパージ経路 4 a, 4 b， …のエアパージ用電磁弁 1 1 a， l i b, …を 各冷却系統 1 2 a， 1 2 b, …ごとに制御することにより、 図 3に例示した 冷却パターン（1)〜 （4) のように、 金型に穿設された多数の冷却穴の所望 個所を所望の冷却パターンで冷却することが可能となる。  According to the mold cooling device that operates in this manner, the high-pressure water solenoid valves la, 1 b, ... and the low-pressure water solenoid valves 2 a, 2 b, ... in the cooling water supply paths 3 a, 3 b, ... By controlling the air purge solenoid valves 11a, lib, ... of the air purge paths 4a, 4b, ... for each cooling system 12a, 12b, ..., the cooling pattern (Fig. 3) As described in 1) to (4), it is possible to cool desired portions of a large number of cooling holes formed in the mold in a desired cooling pattern.
冷却パターン（ 1 )は、 例えば金型キヤビティ内に供給された溶湯の熱を受 けて金型の温度が急激に高温になるような場合に、 そのタイミングに合わせ て冷却スタート信号を入力することにより、 冷却水供給経路 3 a， 3 b, … の高圧水用電磁弁 l a, 1 b, …を所定時間オンさせて高圧冷却水を冷却水 供給経路 3 a， 3 b, …から冷却系統 （配管） 1 2 a， 1 2 b, …を通して 金型の冷却穴内部に通水し金型を確実且つ迅速に冷却し、 次に金型の冷し過 ぎを防止するために、 高圧水用電磁弁 1 a，. 1 b, …をオフさせた後にエア パージ用電磁弁 l l a， l i b, …をオンさせ、 エアパージ経路 4 a, 4 b, …から冷却系統 （配管） 1 2 a， 1 2 b, …を通して金型の冷却穴内部に高 圧エアを流して冷却穴の内部に残っている冷却水をエアパージし、 冷却水に よる冷却を停止させるようにしたパターンである。 冷却パターン（ 2 )は、 例えば金型キャビティ内に供給された溶湯の熱を受 けて金型の温度が急激に高温になるような場合に、 そのタイミングに合わせ て冷却スタート信号を入力することにより、 冷却水供給経路 3 a， 3 b, … の高圧水用電磁弁 l a， l b, …を所定時間オンさせて高圧冷却水を冷却水 供給経路 3 a， 3 b, …から冷却系統 （配管） 1 2 a， 1 2 b, …を通して 金型の冷却穴内部に通水し金型を確実且つ迅速に冷却した後、 例えば製品取 出しなどで新たな熱源の供給がなくなった場合に、 高圧水用電磁弁 l a， 1 b， …をオフさせて低圧水用電磁弁 2 a， 2 b, …を所定時間オンさせて低 圧冷却水を冷却穴の内部に通水し、 次に金型の冷し過ぎを防止するために、 低圧水用電磁弁 2 a, 2 b, …をオフさせた後にエアパージ用電磁弁 1 1 a， l i b, …をオンさせて冷却穴の内部に残っている冷却水をエアパージし、 冷却水による冷却を停止させるようにしたパターンである。 In the cooling pattern (1), for example, when the temperature of the mold suddenly rises due to the heat of the molten metal supplied into the mold cavity, a cooling start signal must be input in accordance with the timing. , The high-pressure water solenoid valves la, 1 b,… of the cooling water supply paths 3 a, 3 b,… are turned on for a predetermined time, and high-pressure cooling water is supplied from the cooling water supply paths 3 a, 3 b,… to the cooling system ( Piping) Through 1 2a, 1 2b,…, water is passed through the cooling hole of the mold to cool the mold securely and quickly, and then for high-pressure water to prevent the mold from over cooling. Turn off solenoid valves 1a, 1b,… and then turn on air purge solenoid valves lla, lib,…, and cool from air purge paths 4a, 4b,… cooling system (piping) 1 2a, 1 2 High-pressure air is flowed into the cooling hole of the mold through b,… to purge the cooling water remaining inside the cooling hole with air. This is a pattern to stop. In the cooling pattern (2), for example, when the temperature of the mold suddenly rises due to the heat of the molten metal supplied into the mold cavity, a cooling start signal should be input in accordance with the timing. , The high-pressure water solenoid valves la, lb, ... of the cooling water supply paths 3a, 3b, ... are turned on for a predetermined time to supply high-pressure cooling water from the cooling water supply paths 3a, 3b, ... to the cooling system (piping). ) After water is passed through the cooling holes of the mold through 1 2a, 1 2b,…, and the mold is cooled down reliably and quickly, when a new heat source is no longer supplied due to, for example, product removal, high pressure is applied. Turn off the water solenoid valves la, 1b, ... and turn on the low-pressure water solenoid valves 2a, 2b, ... for a predetermined period of time to allow low-pressure cooling water to flow through the cooling holes. After turning off the low pressure water solenoid valves 2a, 2b,…, to prevent overcooling, the air purge solenoid valves 1 1a, lib, The turns on to air purge the cooling water remaining within the cooling holes, a pattern so as to stop the cooling by the cooling water.
冷却パターン（ 3 )は、 例えば金型の温度があまり高くないような場合に、 冷却スタート信号を入力することにより冷却水供給経路 3 a， 3 b, …の低 圧水用電磁弁 2 a， 2 b, …を所定時間オンさせて低圧冷却水を金型の冷却 穴内に通水し、 次に金型の冷し過ぎを防止するために、 低圧水用電磁弁 2 a, 2 b, …をオフさせた後にエアパージ用電磁弁 1 1 a， l i b, …をオンさ せて冷却穴の内部に残っている冷却水をエアパージし、 冷却水による冷却を 停止させるようにしたパターンである。  For example, when the temperature of the mold is not so high, the cooling pattern (3) can be configured such that the cooling start signal is input so that the low pressure water solenoid valves 2a, 3a, 3b,. Turn on 2 b,… for a predetermined time to allow low-pressure cooling water to flow through the cooling holes of the mold, and then to prevent the mold from cooling too much, solenoid valves for low-pressure water 2 a, 2 b,… After turning off the air, the air purge solenoid valves 11a, lib, ... are turned on to air purge the cooling water remaining inside the cooling holes, and the cooling by the cooling water is stopped.
冷却パターン（ 4 )は、 冷却スタート信号を入力することにより冷却水供給 経路 3 a， 3 b, …の高圧水用電磁弁 l a， 1 b, …を所定時間オンさせて 高圧冷却水を冷却水供給経路 3 a, 3 b, …から冷却系統 （配管） 1 2 a, 1 2 b, …を通して金型の冷却穴内部に通水し金型を迅速に冷却した後、 一 且高圧水用電磁弁 l a, l b， …をオフし低圧水用電磁弁 2 a, 2 b, …を 所定時間オンさせて、 低圧冷却水を冷却穴の内部に通水して金型を冷却し、 再び冷却スタート信号が入力されると、 高圧水用電磁弁 1 a， l b , …が所 定時間オンして高圧冷却水が金型の冷却穴内に通水され、 次いで高圧水用電 磁弁 l a , 1 b , …がオフし低圧水用電磁弁 2 a , 2 b , …が所定時間オン して低圧冷却水が冷却穴の内部に通水する冷却パターンを繰り返すようにし たものである。 産業上の利用可能性 In the cooling pattern (4), the high pressure water solenoid valves la, 1b, ... of the cooling water supply paths 3a, 3b, ... are turned on for a predetermined time by inputting a cooling start signal, and the high pressure cooling water is cooled. After supplying water from the supply paths 3a, 3b,… through the cooling system (piping) 12a, 12b,… to the inside of the cooling holes of the mold to quickly cool the mold, Turn off valves la, lb,… and turn on low pressure water solenoid valves 2 a, 2 b,… After turning on for a predetermined time, low-pressure cooling water flows through the inside of the cooling hole to cool the mold. When the cooling start signal is input again, the high-pressure water solenoid valve 1 a, lb, ... Turns on, high-pressure cooling water flows through the cooling holes of the mold, then the high-pressure water solenoid valves la, 1b, ... turn off and the low-pressure water solenoid valves 2a, 2b, ... turn on for a predetermined time. Thus, a cooling pattern in which low-pressure cooling water flows through the inside of the cooling hole is repeated. Industrial applicability
本発明に係る金型冷却装置は斯様に構成したので、 金型の冷却部位によつ て冷却パターンを違える場合や金型を交換して新しく冷却系統を追加する場 合であっても、 冷却装置として鍀造機の周りに 1台を設置するだけで済むよ うになる。  Since the mold cooling device according to the present invention is configured as described above, even when the cooling pattern is different depending on the cooling part of the mold or when a new cooling system is added by replacing the mold. Only one cooling device needs to be installed around the machine.
しかも、 高圧水用電磁弁や低圧水用電磁弁、 エアパージ用電磁弁等をプロ グラムでコントロールすることにより、 金型に穿設された多数の冷却穴の所 望個所を所望の冷却パターンで冷却することが可能となり、 よってスィッチ ひとつで所望の冷却パターンを選択することが可能となる。  In addition, by controlling the solenoid valve for high-pressure water, solenoid valve for low-pressure water, solenoid valve for air purge, etc., the desired locations of many cooling holes drilled in the mold can be cooled in a desired cooling pattern. Therefore, a desired cooling pattern can be selected with a single switch.

Claims

請求の範囲 The scope of the claims
1 . 金型に穿設された冷却穴内に冷却水を流通させることにより金型 を冷却する錶造用金型の冷却装置であって、 給水源側に接続される給水径路 に前記冷却穴の内周面に生じる蒸気膜を打ち破る圧力を有する高圧冷却水を 通水させる高圧水用電磁弁と低圧冷却水を通水させる低圧水用電磁弁を並列 に接続すると共にこれら高圧水用電磁弁と低圧水用電磁弁の出口同士を接続 して冷却水供給経路となし、 冷却水供給経路の高圧水用電磁弁および低圧水 用電磁弁をそれぞれ独立して制御することにより冷却水供給経路を通して前 記金型の冷却穴に冷却水を供給するようにしたことを特徴とする铸造用金型 の冷却装置。 1. A cooling device for a production die for cooling a die by flowing cooling water through a cooling hole formed in the die, wherein the cooling hole is provided in a water supply path connected to a water supply source side. A solenoid valve for high-pressure water for passing high-pressure cooling water having a pressure to break the vapor film generated on the inner peripheral surface and a solenoid valve for low-pressure water for passing low-pressure cooling water are connected in parallel. The outlets of the low-pressure water solenoid valves are connected to form a cooling water supply path, and the high-pressure water solenoid valve and the low-pressure water solenoid valve in the cooling water supply path are independently controlled, so that the cooling water supply path A cooling device for a manufacturing die, wherein cooling water is supplied to a cooling hole of the die.
2 . 前記高圧水用電磁弁に高圧の冷却水を供給 るための高圧水吐出用ポ ンプをそなえてなる請求項 1記載の铸造用金型の冷却装置。  2. The cooling device for a production mold according to claim 1, further comprising a high-pressure water discharge pump for supplying high-pressure cooling water to the high-pressure water solenoid valve.
3 . 前記冷却穴内の冷却水をエアパージするための高圧エアを送るエアパ ージ径路を前記各冷却水供給経路ごとにそなえると共に、 エアパージ径路と 冷却水供給経路とを合流させてなる請求項 1又は 2記載の铸造用金型の冷却  3. An air purge path for sending high-pressure air for purging cooling water in the cooling hole is provided for each of the cooling water supply paths, and the air purge path and the cooling water supply path are merged. Cooling of the mold for fabrication described in 2
4 . 前記冷却水供給経路を複数系統そなえてなる請求項 1力 ら 3のいずれ か 1項に記載の铸造用金型の冷却装置。 4. The cooling device for a manufacturing die according to any one of claims 1 to 3, wherein the cooling water supply path includes a plurality of systems.
PCT/JP2002/011270 2001-10-31 2002-10-30 Cooling device for casting molds WO2003037548A1 (en)

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JP5367018B2 (en) * 2011-06-08 2013-12-11 ジヤトコ株式会社 Mold cooling system
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0929413A (en) * 1995-07-19 1997-02-04 Toyota Motor Corp Structure for cooling insert
JPH1080758A (en) * 1996-09-09 1998-03-31 Ahresty Corp Device for cooling metallic mold

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03291157A (en) * 1989-12-31 1991-12-20 Toyo Mach & Metal Co Ltd Die cooling method in low pressure casting machine and its control circuit
JPH0985420A (en) * 1995-09-28 1997-03-31 Mazda Motor Corp Cooling method of metallic mold for casting and its device and metallic mold for casting providing it
JPH1157985A (en) 1997-08-14 1999-03-02 Hitachi Metals Ltd Device for controlling temperature of metallic mold

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0929413A (en) * 1995-07-19 1997-02-04 Toyota Motor Corp Structure for cooling insert
JPH1080758A (en) * 1996-09-09 1998-03-31 Ahresty Corp Device for cooling metallic mold

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