JP6466524B1 - Mold cooling system - Google Patents

Abstract

A mold cooling apparatus capable of preventing overcooling is obtained. The mold cooling apparatus 100 includes a manifold section 20 having a plurality of branch pipes 9b and 14b for introducing cooling water or air into the mold 10, and cooling for supplying the manifold section 20 with cooling water. A water supply unit 30; and an air supply unit 40 for supplying air to the manifold unit 20. The manifold unit 20 includes a cooling water manifold 9 for introducing cooling water, and air. An air manifold 14 for introduction and check valves 17a and 17b installed in the plurality of branch pipes 9b and 14b are provided. [Selection] Figure 1

Description

  The present invention relates to a mold cooling apparatus.

  Conventionally, a mold cooling device for cooling a mold at the time of casting is known. For example, Patent Document 1 below discloses a cooling water manifold for die cooling in a die casting machine. The mold cooling cooling water manifold described in Patent Document 1 described below is configured such that the cooling water that has flowed into the manifold body is supplied to the cooling holes of the mold through the cooling water distribution hose.

  The cooling of the mold by the cooling water is not always performed at the time of casting, but is performed when the mold is filled with the molten metal. And, for example, when the mold is not filled with molten metal, such as after opening the mold, overcooling is prevented by supplying air to the cooling hole of the mold.

JP 2001-18050 A

  By the way, in the structure like the cooling water manifold for mold cooling described in the above-mentioned Patent Document 1, the cooling water or the air is used as the cooling water distribution hose after the manifold body is completely filled with the cooling water or the air. It is supplied to the cooling hole of the mold. Therefore, when supplying cooling water to the mold cooling hole and then trying to prevent overcooling by supplying air to the cooling hole, air is supplied to the cooling hole until the cooling water in the manifold body is discharged. There was a problem that it could not be supplied and overcooling would occur. Conversely, after the cooling water in the manifold body is discharged with air, it takes time to fill the cooling water in the manifold body, and the cooling water cannot be supplied to the cooling holes, resulting in overheating. There was also a problem.

  The present invention has been made in view of the problems existing in the above-described prior art, and an object thereof is to provide a mold cooling apparatus capable of cooling a mold at an appropriate timing.

  The present invention will be described below. In addition, in order to make an understanding of this invention easy, the reference number of an accompanying drawing is attached in parenthesis writing, However, This invention is not limited to the form of illustration.

The mold cooling device (100) according to the present invention includes a manifold section (20) having a plurality of branch pipes (9b, 14b) for introducing cooling water or air into the mold (10), and the manifold section ( A cooling water supply part (30) for supplying cooling water to 20) and an air supply part (40) for supplying air to the manifold part (20), wherein the manifold part (20) A cooling water manifold (9) for introducing cooling water, an air manifold (14) for introducing air, and a check valve (17a) installed in the plurality of branch pipes (9b, 14b) , provided with 17b), a said cooling water manifold (9) wherein the air manifold (14) check valve (17a, 17b) and is characterized that you have been unitized.

  Further, in the mold cooling device (100) according to the present invention, the check valves (17a, 17b) are arranged downstream of the cooling water manifold (9) or the air manifold (14). It can be.

  According to the present invention, it is possible to provide a mold cooling apparatus capable of preventing overcooling and overheating.

It is a figure which shows the structural example of the metal mold cooling apparatus which concerns on this embodiment.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described with reference to the drawings. The following embodiments do not limit the invention according to each claim, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. .

  First, a configuration example of the mold cooling apparatus 100 according to the present embodiment will be described with reference to FIG. Here, FIG. 1 is a diagram illustrating a configuration example of the mold cooling apparatus according to the present embodiment.

  The mold cooling apparatus 100 according to this embodiment includes a manifold section 20 having a plurality of branch pipes 9b and 14b for introducing cooling water or air into the mold 10, and cooling water for supplying cooling water to the manifold section 20. A supply unit 30 and an air supply unit 40 for supplying air to the manifold unit 20 are provided.

  The mold 10 is a metal mold for obtaining a desired cast product, and includes a cooling pipe 10a for cooling the mold 10 therein.

  The manifold section 20 includes a cooling water manifold 9 for introducing cooling water, an air manifold 14 for introducing air, and check valves 17 (17a, 17b) installed in the plurality of branch pipes 9b, 14b. And). A plurality of manifold sections 20 are installed according to the mold 10.

  In the present embodiment, the cooling water manifold 9, the air manifold 14, and the check valves 17 (17 a and 17 b) included in the manifold portion 20 are unitized. Thus, the manifold part 20 is unitized, so that the assembling property can be improved and the space can be saved.

  The cooling water manifold 9 includes a cooling water manifold main body 9a and a plurality of branch pipes 9b. One end on the upstream side of the cooling water manifold 9 is connected to the cooling water supply unit 30, and the downstream side of the branch pipe 9 b of the cooling water manifold 9 is connected via a supply hose 18 for introducing and distributing cooling water or air. It is connected to the cooling pipe 10 a of the mold 10. When the cooling water manifold body 9a is filled with cooling water, the cooling water manifold 9 is introduced into the cooling pipe 10a of the mold 10 via the branch pipe 9b and the supply hose 18. Yes.

  The air manifold 14 includes an air manifold main body 14a and a plurality of branch pipes 14b. One end on the upstream side of the air manifold 14 is connected to the air supply unit 40, and the downstream side of the branch pipe 14 b of the air manifold 14 is connected to the cooling pipe 10 a of the mold 10 via the supply hose 18. The air manifold 14 is configured such that when the air manifold main body 14 a is filled with air, the air is introduced into the cooling pipe 10 a of the mold 10 through the branch pipe 14 b and the supply hose 18. The branch pipe 9b and the branch pipe 14b are connected to the supply hose 18 through a joint (not shown).

  The check valve 17 (17a, 17b) is for preventing the coolant or air from flowing backward. In the present embodiment, the check valve 17 (17 a, 17 b) is installed on the downstream side of the cooling water manifold 9 or the air manifold 14. The check valve 17 (17a, 17b) is controlled to be opened and closed by electromagnetic valves 8 and 13, which will be described later, so that cooling water or air can be selectively introduced into the cooling pipe 10a of the mold 10. Yes. More specifically, when the check valve 17a on the cooling water manifold 9 side is opened, the cooling water is introduced into the cooling pipe 10a of the mold 10, while the check valve 17b on the air manifold 14 side is opened. The air is introduced into the cooling pipe 10 a of the mold 10.

  The mold cooling apparatus 100 according to the present embodiment separately supplies a cooling water manifold 9 for introducing cooling water and an air manifold 14 for introducing air, so that, for example, the cooling water is supplied to the mold 10. Thereafter, when air is to be supplied to the mold 10 to prevent overcooling, air can be supplied to the mold 10 without waiting until the cooling water in the cooling water manifold 9 is discharged. It has become. Further, when trying to prevent overheating, the cooling water can be supplied to the mold 10 without waiting until the air in the air manifold 14 is discharged. Therefore, according to the present invention, overcooling and overheating of the mold 10 can be effectively prevented.

  The cooling water supply unit 30 is for supplying cooling water to the manifold unit 20. The cooling water supply unit 30 according to the present embodiment includes a cooling water tank 1 that stores cooling water, a cooling water circulation submersible pump 2 that circulates cooling water, an oil cooler 3 that cools cooling water, and cooling water. Cooling water pump 4 for sending from the tank 1 to the mold 10 via the cooling water manifold 9, a filter 5 for filtering the cooling water, pressure gauges 6 and 7, and a cooling water manifold And an electromagnetic valve 8 to be introduced into the apparatus 9.

  The cooling water tank 1 is connected to an oil cooler 3 and a water collecting container 15 described later. The cooling water stored in the cooling water tank 1 is cooled by circulating through the oil cooler 3 by a cooling water circulating submersible pump 2 disposed in the cooling water tank 1.

  The cooling water pump 4 is for sending the cooling water stored in the cooling water tank 1 to the mold 10 via the cooling water manifold 9. A filter 5 is installed between the cooling water pump 4 and the cooling water manifold 9. Pressure gauges 6 and 7 are installed on the upstream side and the downstream side of the filter 5.

  An electromagnetic valve 8 for allowing cooling water to flow into the cooling water manifold 9 is installed on the upstream side of the cooling water manifold 9. This electromagnetic valve 8 causes cooling water to flow into the cooling water manifold 9.

  The air supply unit 40 includes a compressor 11, a pressure adjustment valve 12 that adjusts the pressure of air, and an electromagnetic valve 13 that causes air to flow into the air manifold 14.

  The pressure of the air sent by the compressor 11 is adjusted by the pressure adjustment valve 12. The pressure-adjusted air flows into the air manifold 14 by the electromagnetic valve 13 installed on the upstream side of the air manifold 14.

  The configuration example of the mold cooling apparatus 100 according to the present embodiment has been described above. Next, an operation example of the mold cooling apparatus 100 according to the present embodiment will be described.

  As described above, the cooling water stored in the cooling water tank 1 is cooled by circulating through the oil cooler 3 by the cooling water circulating submersible pump 2.

  The cooling water stored in the cooling water tank 1 is sent to the cooling water manifold 9 by the cooling water pump 4. The cooling water is filtered by passing through the filter 5 installed on the upstream side of the cooling water manifold 9. The filtered cooling water flows into the cooling water manifold 9 by the electromagnetic valve 8. In addition, when the pressure of the cooling water from the cooling water pump 4 becomes excessive, the pressure adjustment valve 16 for adjusting the pressure of the cooling water is opened, and the excessive cooling water returns to the cooling water tank 1. Has been.

  When the cooling water manifold body 9a of the cooling water manifold 9 is filled with cooling water, the cooling water is introduced into the cooling pipe 10a of the mold 10 via the branch pipe 9b and the supply hose 18 to cool the mold 10. Is implemented.

  The cooling water introduced into the cooling pipe 10a of the mold 10 from the supply hose 18 passes through the discharge hose 19 that discharges and distributes the cooling water, and enters the cooling water tank 1 through the water collecting container 15 for collecting the cooling water. Return.

  On the other hand, as described above, the pressure of the air sent by the compressor 11 is adjusted by the pressure adjustment valve 12. The pressure-adjusted air flows into the air manifold 14 by the electromagnetic valve 13 installed on the upstream side of the air manifold 14.

  When the air manifold body 14 a of the air manifold 14 is filled with air, the air is introduced into the cooling pipe 10 a of the mold 10 through the branch pipe 14 b and the supply hose 18. Like the cooling water, the air introduced into the cooling pipe 10a of the mold 10 passes through the discharge hose 19 and is released into the atmosphere by the water collecting container 15.

  The cooling water in the cooling water manifold main body 9 a and the air in the air manifold main body 14 a are selectively cooled by the open / close control of the check valve 17 (17 a, 17 b) and the electromagnetic valves 8, 13. It is introduced into the tube 10a. That is, in the mold cooling apparatus 100 according to the present embodiment, when the check valve 17a on the cooling water manifold 9 side is opened, the cooling water is introduced into the cooling pipe 10a of the mold 10 and on the air manifold 14 side. When the check valve 17b is opened, air is introduced into the cooling pipe 10a of the mold 10. Therefore, according to this embodiment, when supplying cooling water to the mold 10 and then supplying air to the mold 10 to prevent overcooling, the cooling water in the cooling water manifold 9 is discharged. Thus, air can be supplied to the mold 10 without waiting until the mold 10 is overcooled, and overcooling of the mold 10 can be effectively prevented. Further, when trying to prevent overheating of the mold 10, it is possible to supply cooling water to the mold 10 without waiting until the air in the air manifold 14 is discharged, which effectively prevents overheating of the mold 10. Can be prevented.

  In the mold cooling device 100 according to the present embodiment, when the cooling water manifold main body 9a is filled with cooling water and the air manifold main body 14a is filled with air in advance, the opening and closing control of the electromagnetic valves 8 and 13 is performed. Immediately, cooling water or air is introduced into the cooling pipe 10 a of the mold 10. Therefore, according to the present invention, an improvement in control response can be realized.

  Further, the mold cooling apparatus 100 according to the present embodiment includes a cooling water pump 4, a solenoid valve 8, a compressor 11, a solenoid valve 13, a check valve 17 (17a, 17b), and the like according to each process during casting. Controlled, cooling water or air is supplied to the cooling pipe 10a of the mold 10 at an appropriate timing. Therefore, according to the present invention, overcooling and overheating of the mold 10 can be prevented.

  As mentioned above, although preferred embodiment of this invention was described, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the embodiment. It is apparent from the description of the scope of claims that embodiments with such changes or improvements can be included in the technical scope of the present invention.

  100 Mold cooling device, 1 Cooling water tank, 2 Cooling water circulating submersible pump, 3 Oil cooler, 4 Cooling water pump, 5 Filter, 6, 7 Pressure gauge, 8 Solenoid valve, 9 Cooling water manifold, 9a For cooling water Manifold body, 9b Branch pipe, 10 mold, 10a Cooling pipe, 11 Compressor, 12 Pressure regulating valve, 13 Solenoid valve, 14 Air manifold, 14a Air manifold body, 14b Branch pipe, 15 Water collecting container, 16 Pressure regulating valve, 17 (17a, 17b) check valve, 18 supply hose, 19 discharge hose, 20 manifold section, 30 cooling water supply section, 40 air supply section.

Claims (2)

A manifold portion having a plurality of branch pipes for introducing cooling water or air into the mold, a cooling water supply portion for supplying cooling water to the manifold portion, an air supply portion for supplying air to the manifold portion, In the mold cooling apparatus, the manifold section includes a cooling water manifold for introducing cooling water, an air manifold for introducing air, and a check valve installed in the plurality of branch pipes. , wherein the cooling water manifold and said air manifold and said check valve is a mold cooling device, characterized that you have been unitized. 2. The mold cooling apparatus according to claim 1 , wherein the check valve is disposed on the downstream side of the cooling water manifold or the air manifold.

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