JP6755586B2 - Cooling device for high temperature parts - Google Patents

Description

The present invention relates to a cooling device for cooling a high temperature part such as a cast rough material immediately after casting.

Products made from rough castings made of aluminum or the like are cooled from a high temperature range immediately after casting to a low temperature range that can be handled by workers. Then, in order to maintain and improve the production efficiency of the product, it is necessary to increase the cooling efficiency and cool as quickly as possible. Therefore, high-temperature parts such as cast rough materials are sequentially and intermittently transferred in the longitudinal direction. A cooling device has been proposed (see, for example, Patent Document 1).

FIG. 6 is a perspective view showing a configuration example of the conventional cooling device, and is an enlarged view showing a main part of the conventional cooling device.

The cooling device 100 includes a cooling chamber 102 for accommodating the cast rough material 101, a transport unit 103 for transferring the cast rough material 101, a cooling air supply unit 104 for blowing cooling air to the cooling chamber 102, and an upper space. It is provided with a water tank container 105 that communicates with the cooling chamber and has a water tank in the lower space, and a spray unit 106 that sprays water into the upper space of the water tank container 105, and the cooling air is cooled by the cooling air supply unit 104. It is circulated between the chamber 102 and the water tank container 105, and the cooling air in the water tank container 105 is cooled by the spray unit 106. The cooling device 100 is provided with a side blowing portion 109 for blowing cooling air from the side as shown in FIG. 7 in addition to an upper blowing portion 107 for blowing cooling air to the high temperature component from above. The purpose is to increase the area exposed to air to improve the cooling capacity.

Japanese Unexamined Patent Publication No. 2010-60184

Here, the cooling of the cast rough material must take into consideration the post-process, and for the homogeneity of the molded product of the cast rough material, it is necessary to cool not only the surface of the cast rough material but also the inside.

The cooling device of Patent Document 1 exhibits an excellent cooling capacity, and can cool the surface of the cast rough material to a temperature range where an operator can touch it within a predetermined time. However, since the cast rough material is arranged in close contact with the mounting surface of the transport portion, there is a problem that the cooling air does not reach the entire cast rough material and it is insufficient to cool the inside of the cast rough material. ..

Therefore, the present invention has been made in view of the above-mentioned problems, and provides a cooling device for high-temperature parts that can cool not only the surface of high-temperature parts such as cast rough materials but also the inside within a predetermined time. The purpose is to provide.

In order to solve the above problems, the cooling device for high temperature parts according to the present invention includes a cooling chamber for accommodating high temperature parts, a cooling air supply means for supplying cooling air to the cooling chamber, and a bottom surface of the cooling chamber. It is characterized by including a raising means for raising the high temperature component placed on the bottom surface from the bottom surface.

According to this, the raised part raises the cast rough material of the high temperature part, and the cooling air also hits the bottom surface of the high temperature part, so that the cooling air spreads throughout the high temperature part and cools the inside of the high temperature part. A cooling device for possible high temperature parts is realized.

Here, the raising means preferably includes a height adjusting unit for adjusting the height of the raising, and the cooling air supply means includes a wind speed adjusting unit for adjusting the speed at which the cooling air is blown out. Is preferable.

According to this, the cooling conditions can be set at an appropriate height and wind speed.

Further, the raised portion may be provided with a ventilation hole for ventilating cooling air.

According to this, since the raised portion does not obstruct the flow of the cooling air in the cooling chamber, efficient cooling is possible.

As described above, according to the cooling device for high-temperature parts according to the present invention, since the raised portion raises the cast rough material of the high-temperature parts from the bottom of the cooling chamber, the cooling air also hits the bottom surface of the high-temperature parts and the temperature is high. Cooling air spreads throughout the component, enabling cooling to the inside of high-temperature components.

It is a figure which shows the structural example of the cooling apparatus which concerns on embodiment of this invention. It is a figure which shows the structure of the raised part. It is a figure which shows the structure of the raised part. It is a figure which shows the structure of the raised part. It is a figure which shows the structure of a raised part and a pallet. It is a perspective view which shows the structural example of the conventional cooling apparatus. It is a figure which shows the main part of the conventional cooling apparatus in an enlarged manner.

Hereinafter, the cooling device for high temperature parts according to the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing a configuration example of a cooling device according to an embodiment of the present invention.

The cooling device 1 includes a cooling chamber 3 which is a space for cooling the cast rough material 2 which is a high temperature component, and a cooling air supply unit (not shown) for blowing cooling air (cooling air) to the cooling chamber 3. An upper blowing portion 10 for blowing cooling air from above onto the cast rough material 2 is provided inside the upper surface of the cooling chamber 3, and a side blowing portion 11 for blowing cooling air from the side to the casting rough material 2 is cooled. It is provided on both sides of the chamber 3.

This cooling device 1 is a so-called batch in which a cooling cycle in which one shot (for each casting) of the casting cycle is carried into the cooling chamber 3, cooled, and then carried out is matched with the casting cycle. It is a type of cooling device. The cast rough material 2 carried into the cooling chamber 3 is placed on a pallet 12 located at the bottom surface of the cooling chamber 3 and cooled by the cooling air from the upper blowing portion 10 and the side blowing portion 11.

The pallet 12 is located on the bottom surface of the cooling chamber 3 and is a member for placing the cast rough material 2 when the cast rough material 2 is cooled in the cooling chamber 3. The raised portion 13 projects upward from the upper surface of the pallet 12.

The raising member 1 is a member that raises the bottom of the casting rough material 2 so that the bottom surface of the casting rough material 2 does not come into close contact with the pallet 12. By exposing the bottom surface of the cast rough material 2 by the raising portion 13, the cooling air from the side blowing portion 11 also hits the bottom surface of the cast rough material 2 to cool the entire cast rough material 2. ..

As shown in FIG. 1, the raising portion 13 raises the cast rough material 2 from the upper surface of the pallet 12 to a predetermined height A. The raising allowance of the predetermined height A is preferably 10 mm or more and less than 250 mm. This is because if the raising allowance is less than 10 mm, it becomes difficult for the cooling air from the side blowing portion 11 to cool the bottom surface of the cast rough material 2 with a sufficient amount of air. Further, when the raising allowance is 250 mm or more, the gap created by the raising becomes too large, and it becomes difficult for the cooling air to efficiently cool the bottom surface of the cast rough material 2.

It is also preferable to adjust the wind speed of the cooling air blown from the upper blowing portion 10 and the side blowing portion 11. The blowing speed (wind speed) is 10 m / sec or more and less than 100 m / sec. This is because if it is less than 10 m / sec, the absolute cooling capacity is insufficient. If it is 100 m / sec or more, the rebound of the cooling air blown to the casting rough material 2 becomes remarkable and causes turbulent air inside the cooling chamber 3, which not only makes it difficult to control the cooling rate but also adheres to the casting rough material 2. This is because there is a risk that the dust and the like will scatter and scatter outside the device, deteriorating the working environment.

A thermocouple, a wind speed sensor, or the like is installed in the cooling chamber 3 to detect the cooling status of the cast rough material 2, adjust the height of the predetermined height A of the raising portion 13, and adjust the height of the upper blowing portion 10 and the side blowing portion. It is preferable to be able to control the wind speed adjustment of the cooling air blown from 11. This enables efficient cooling in consideration of the post-process.

FIG. 2 is a diagram showing the configuration of the raised portion 13.

The raised portion 13 projects upward from the upper surface of the pallet 12. It may be fixedly arranged on the upper surface of the pallet 12, but as shown in FIG. 2, when the raised storage portion 14 is opened in the pallet 12 so that the raised portion 13 can be stored and the cast rough material 2 is raised. It is preferable that the raised portion 13 protrudes.

Further, when the raised portion 13 is formed in a plate shape as shown in FIG. 2, a ventilation hole 13a may be provided so that the raised portion 13 does not block the flow of the cooling air. The ventilation holes 13a are not limited to those shown in the figure, and may be slit-shaped or the like as long as the plate-shaped raised portion 13 is opened to allow ventilation. If the raised portion 13 has enough strength to hold the cast rough material 2 in a raised state, the position and ratio of the ventilation holes 13a can be appropriately designed. Further, the material of the raised portion 13 is not particularly limited as long as it has the above-mentioned strength such as made of metal or thermosetting resin.

FIG. 3 shows another configuration of the raised portion. In this way, the L-shaped raised portion 15 and the raised storage portion 16 may be provided at the four corners. With this configuration, the raised portion 15 can enable efficient cooling without obstructing the flow of the cooling air in the cooling chamber 3.

FIG. 4 shows yet another configuration of the raised portion. This is an example in which a columnar raised portion 17 and a raised storage portion 18 for storing the columnar raised portion 17 are provided at the four corners. Even with this configuration, the raised portion 17 does not obstruct the flow of the cooling air in the cooling chamber 3, so that efficient cooling is possible.

FIG. 5 shows another configuration of the raised portion and the pallet.
The pallet 12a has a tray shape with a wall portion formed on the peripheral edge thereof. The raised portion 19 is welded and fixed on the bottom surface of the pallet 12a, and protrudes upward from above the bottom surface of the pallet 12a higher than the peripheral wall portion. In this example, when the casting sand adhering to the casting rough material 2 falls off, the pallet 12a serves as a saucer to store the casting sand, so that the casting sand can be easily collected and discharged.

In the cooling device 1 having such a configuration, since the raising portion 13 raises the cast rough material 2 from the bottom of the cooling chamber 3, the cooling air also hits the bottom surface of the cast rough material 2 to cool the entire cast rough material. The wind can spread and cool the inside of the cast rough material.

As an example, the result of an evaluation experiment of the cooling capacity of the cooling device for high temperature parts according to the present invention will be described.

The predetermined height A of the raised portion 13 is set to 200 mm, the wind speed of the cooling air blown from the upper blowing portion 10 and the side blowing portion 11 is set to 50 m / sec, and the temperature is set to a high temperature range (for example, about 400 ° C.) immediately after casting. A certain cast crude material 2 was carried into the cooling chamber 3.

Nine minutes after the rough casting material 2 was carried in, the temperature of the rough casting material 2 could be cooled to a low temperature range (about 60 ° C.), which is the target temperature, and the rough casting material 2 could be quickly carried out from the cooling chamber 3.

The cooling device for high-temperature parts according to the present invention has been described above based on the embodiments, but the present invention is not limited thereto, and the object of the present invention can be achieved and the gist of the present invention is not deviated. Various design changes can be made within the invention, all of which are included within the scope of the present invention.

For example, in the above-described embodiment, the batch type cooling device has been described, but it may be applied to a transport type cooling device that sequentially transfers and cools the cast rough material in the longitudinal direction, which is exemplified as a conventional cooling device. ..

The cooling device for high-temperature parts according to the present invention is useful as a cooling device or the like for rapidly cooling high-temperature parts such as a cast rough material immediately after casting.

1,100 Cooling device 2,101 Casting rough material 3,102 Cooling chamber 10,107 Upper blowout part 11,109 Side blowout part 12,12a Pallet 13,15,17,19 Raising part 13a Ventilation holes 14,16,18 Raised storage unit 103 Transport unit 104 Cooling air supply unit 105 Water tank container 106 Spraying unit 108 Outlet

Claims (4)

A cooling chamber that houses high-temperature parts and
A cooling air supply means for supplying cooling air to the cooling chamber and
A raising means for raising a high-temperature component placed on the bottom surface of the cooling chamber from the bottom surface, and
It is equipped with a sensor that detects the cooling status of high-temperature parts in the cooling chamber.
The raising means includes a height adjusting unit that adjusts the height of the raising according to the cooling condition detected by the sensor.
The cooling air supply means is a cooling device for high-temperature components including a wind speed adjusting unit that adjusts the speed at which cooling air is blown out according to a cooling condition detected by the sensor. The cooling device for high-temperature parts according to claim 1, wherein the raising means is arranged at four corners of the bottom surface of the cooling chamber. A pallet for placing high-temperature parts is provided on the bottom surface of the cooling chamber.
The pallet has a tray shape with a wall formed on the peripheral edge.
The cooling device for high-temperature parts according to claim 1 , wherein the raising means projects higher than the wall portion and upward. The raising means
The cooling device for high-temperature components according to any one of claims 1 to 3, further comprising a ventilation hole for ventilating cooling air.

Images