JPH0534083A - Heat exchanging device - Google Patents

Abstract

PURPOSE:To obtain a heat exchanging device, never requesting cleaning even when air is filled with cutting oil mist and thereby the environment around a control panel becomes bad and prominent in the property of maintenance, by a method wherein the heat exchanger, provided in the control panel of a machine tool and the like and cooling air around the control panel, is provided with an oil receiver. CONSTITUTION:A plurality of heat transfer fins 6 are arranged in a heat exchanging device 16 at predetermined intervals. A first airflow passage 8 for internal air and a second airflow passage 14 for atmosphere are formed through the heat transfer fins 6 while the heat exchanging device is constituted so that the second airflow passage 14 for atmosphere is provided with an oil receiver 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange device arranged on a control panel of a machine tool or the like for cooling air in the control panel.

[0002]

2. Description of the Related Art In recent years, a large amount of cutting oil has been used in machine tools as the machining accuracy and machining speed increase. This oil is atomized and the atmosphere around the control panel is getting worse. Therefore, it has been desired to develop a heat exchange device that copes with the deterioration of the atmosphere. For example, JP-A-6
The configuration shown in Japanese Patent Publication No. 2-009188 was common.

The conventional heat exchange device described above will be described below with reference to the accompanying drawings with reference to FIGS.

FIG. 7 is a perspective view of a main part of a control panel on which a conventional heat exchange device is mounted, and FIG. 8 is a sectional view of FIG. 7 showing the flow of air. 9 is a cross-sectional view of the main part of the heat exchange device of FIG. 7 cut in the depth direction of the control panel, and FIG. 10 is a perspective view of heat transfer fins incorporated in the conventional heat exchange device.

In the figure, reference numeral 1 is a control panel, on the top surface of which a suction port 2 and a discharge port 3 for inside air are provided. A blower 4 for inside air is attached to the suction port 2. A heat exchanger 5 is attached to the top surface of the control panel 1. The heat transfer fins 6 have a hollow columnar shape, and a plurality of heat transfer fins 6 are arranged inside the heat exchange device 5 at a predetermined interval. Also,
The space formed between the adjacent heat transfer fins 6 is the partition plate 7.
Both ends are closed by a and 7b. This space is the suction port 2
The air in the control panel 1 is passed by the blower 4 for inside air attached to the inside, and is discharged from the discharge port 3 to form the first air passage 8.

Therefore, the air in the control panel 1 is sucked by the inside air blower 4 from the suction port 2 and passes through the first air passage 8 formed between the adjacent heat transfer fins 6, and the discharge port 3 controls the air. The structure is such that the liquid is discharged into the inside.

An air blower 9 for outside air is attached to the end plate 10 of the heat exchange device 5, and the end plate 10 is provided with a suction port 11. The outside air sucked by the outside air blower 9 passes through the columnar hollow space of the heat transfer fins 6 and is discharged from the discharge port 13 provided in the end plate 12 of the heat exchange device 5 to form the second air passage 14. is doing. A space 15 is provided between the outside air blower 9 and the heat transfer fins 6 and the partition plate 7a so that the outside air can uniformly pass through the respective second air passages 14.

In an abnormal configuration, the inside air containing heat generated inside the control panel 1 flows through the first air passage 8 and exchanges heat with the outside air flowing through the second air passage 14 via the heat transfer fins 6. As a result, the inside air flowing through the first air passage 8 is cooled.

[0009]

However, in the above-mentioned structure, the cutting oil used during the machining of the machine tool is atomized into the heat exchanging device 5 together with the outside air by the outside air blower 9 into the gap 15. Stay.

Although the partition plate 7a and the end plate 10 are joined to the top surface of the control panel 1, they are not in close contact with each other, so that the accumulated oil flows out to the top surface of the control panel 1 and the appearance is impaired. However, there is a risk that the discharge port 3 provided on the top surface of the control panel 1 may flow into the control panel.

Therefore, it is necessary to clean the top surface of the control panel 1 and the oil flowing out into the control panel, and the maintenance is difficult.

The present invention solves the above-mentioned conventional problems. The appearance of the cutting oil used during machining of a machine tool is not spoiled even in an atomized state, and the oil flows out into the control panel. It is an object of the present invention to provide a heat exchange device having no danger and excellent maintainability.

[0013]

In order to solve the above-mentioned problems, the heat exchange device of the present invention includes a control panel provided with a suction port and a discharge port having an inside air blower on the top surface, and the inside air A first air passage that communicates with the inside air through a blower, a second air passage that is formed in the plurality of heat transfer fins and that communicates with the outside air through the outside air blower, and a discharge port that communicates with the second air passage. And an oil receiver is provided below the outside air blower.

Further, in order to solve the above-mentioned problems, the heat exchange device of the present invention is provided with an oil drain pipe in an oil receiver provided below the outside air blower.

[0015]

According to the heat exchange apparatus of the present invention, the cutting oil used during machining of the machine tool is in the form of spray due to the above-mentioned constitution, and the blower for the outside air is attached even if it enters the heat exchange apparatus together with the outside air. It collects in the oil receiver provided between the end plate and the partition plate.

Further, in the heat exchange device of the present invention, when oil is collected in the oil receiver, it can be discharged to the outside of the heat exchange device through the oil drain pipe.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a heat exchange device according to the first embodiment of the present invention mounted on a control panel, and FIG. 2 is shown in FIG.
FIG. 3 is a vertical sectional view of FIG. 3, and FIG. 3 is a sectional view showing an air passage.

1 to 3, the same components as those of the conventional one are designated by the same reference numerals and detailed description thereof will be omitted. 1
A heat exchanger 6 is attached to the top surface of the control panel 1.
The outside air blower 9 is attached to the end plate 17, and the end plate 1
A suction port 18 is provided at 7. An oil receiver 19 is installed between the end plate 17 and the partition plate 7a, that is, in the space 15. The oil receiver 19 is located below the outside air blower 9. The lower portion of the end plate 17 is provided with a notch so that the oil receiver 19 can be taken out.

With the above-described structure, the cutting oil used during machining of the machine tool is atomized, and the blower 9 for outside air is used.
As a result, even if a large amount of air enters the heat exchange device 16 together with the outside air, the oil is collected in the oil receiver 19 and therefore does not flow out to the top surface of the control panel 1 and spoil the appearance. In addition, the heat exchange device 16
There is no risk that the oil that has entered inside will flow out into the control panel 16. Therefore, since the structure is such that oil does not flow out, cleaning and maintenance are unnecessary.

Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 4 is a perspective view of the heat exchange device according to the second embodiment of the present invention mounted on a control panel, FIG. 5 is a vertical sectional view of FIG. 4, and FIG. 6 is a sectional view showing an air passage.

4 to 5, the same components as those of the conventional one are designated by the same reference numerals and detailed description thereof will be omitted. Two
Reference numeral 0 denotes a heat exchange device, which is attached to the top surface of the control panel 1.
The outside air blower 9 is attached to the end plate 17, and the end plate 1
A suction port 18 is provided at 7. An oil receiver 21 is installed between the end plate 17 and the partition plate 7a, that is, in the space 15. The oil receiver 21 is located below the outside air blower 9. The lower portion of the end plate 17 is provided with a notch so that the oil receiver 21 can be taken out. An oil drain pipe 22 is attached to the side surface of the oil receiver 21.

With the above-mentioned structure, the cutting oil used during machining of the machine tool is atomized, and the blower 9 for outside air is used.
Therefore, even if a large amount of air enters the heat exchange device together with the outside air, it collects in the oil receiver 21 and can be discharged to the outside of the heat exchange device 20 through the oil drain pipe 22. Never. In addition, there is no danger of flowing into the control panel 1. Therefore, the structure is such that oil does not flow out, and cleaning and maintenance are unnecessary.

[0024]

As described above, the heat exchange device of the present invention has the following effects.

By providing an oil receiver in the space between the end plate to which the outside air blower is attached and the partition plate and being located under the outside air blower, the cutting oil used during machining of the machine tool is atomized. Therefore, even if a large amount of the outside air blows into the heat exchange device together with the outside air, it does not accumulate in the oil receiver and flow out to the top surface of the control panel to spoil the appearance.

Further, in the heat exchange device of the present invention, since the oil drain pipe is attached to the oil receiver, the oil accumulated in the oil receiver can be discharged to the outside of the heat exchange device through the oil drain pipe. It does not require any cleaning and has excellent maintainability.

[Brief description of drawings]

FIG. 1 is a perspective view of essential parts of a heat exchange device and a control panel according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is a cross-sectional view of essential parts showing an air passage of the heat exchange device of FIG.

FIG. 4 is a perspective view of a heat exchange device and a control panel according to another embodiment.

5 is a vertical cross-sectional view of FIG.

FIG. 6 is a cross-sectional view of essential parts showing an air passage of the heat exchange device of FIG.

FIG. 7 is a perspective view of a heat exchange device and a control panel showing a conventional example.

FIG. 8 is a vertical sectional view of FIG.

9 is a cross-sectional view of main parts showing an air passage of the heat exchange device of FIG.

FIG. 10 is a perspective view of a heat transfer fin of a heat exchange device showing a conventional example.

[Explanation of symbols]

1 control panel 2 suction port 3,13 outlet 4 Inside air blower 6 heat transfer fins 8 First wind passage 9 External air blower 14 Second wind path 16,20 Heat exchange device 19,21 oil pan 22 Oil drain pipe

Claims (2)

[Claims] 1. A control panel provided with a suction port and a discharge port having a blower for inside air on the top surface, a first air passage communicating with the inside air through the blower for inside air, and a plurality of electric heating fins formed inside. A heat exchange device that includes a second air passage that communicates with the outside air via the outside air blower and a discharge port that communicates with the second air passage, and that has an oil receiver below the outside air blower. 2. The heat exchange device according to claim 1, wherein an oil drain pipe is provided in an oil receiver provided below the outside air blower.