KR101235893B1 - Vacuum cleaner for cutting fluid - Google Patents

Abstract

The present invention relates to a suction cleaner for recovering cutting oil generated during operation of a machine tool. In an embodiment of the present invention, a cutting oil suction cleaner for sucking waste cutting oil in which chips and cutting oil are mixed, the main body having an empty space therein. It is installed to be spaced apart from the bottom of the empty space, the chip is filtered and the cutting oil is passed through, the filter unit is connected to the main body on the filter unit, the inlet line, the waste cutting oil is sucked into the inlet line A cutting oil suction cleaner including a gas separation unit separating air from the waste cutting oil, and a power unit communicating with the main body to suck the air from the main body and discharge the air to the outside.

Description

Coolant Suction Cleaner {VACUUM CLEANER FOR CUTTING FLUID}

The present invention relates to a suction cleaner for recovering cutting oil generated during operation of a machine tool.

A machine tool is a machine that processes machine parts made of casting, forging, etc., and generally machine metal materials while cutting chips such as cutting or grinding. In recent years, with the development of electronic engineering, the development of numerically controlled machine tools (NC) has made it possible to process metal materials more quickly.

The cutting oil and the cutting tool of the metal material are cooled and lubricated to extend the life of the tool and to use the cutting oil for cleaning the cutting surface. Cutting chips are mixed with the cutting oil discharged from cutting or grinding. Although waste cutting oil may be discarded without being recycled depending on processing conditions, it is generally recycled as a lubricant for roughing or heavy cutting after separating and removing chips contained in waste cutting oil.

In the prior art, the recovery of waste cutting oil was a method of limiting the path of the waste cutting oil flowing down by using an oil fence and collecting the waste cutting oil by flowing it to a collecting container. The container containing a certain amount of waste cutting oil was transferred to the operator and put in a separate separator, and again, the coolant with chips filtered from the separator was transferred to the lubricant storage tank of the machine tool and recycled.

The prior art described above has the disadvantage of being cumbersome by having the operator go through several steps. In addition, the processing process is more complicated when a large amount of waste cutting oil to be processed by operating a plurality of machine tools, it is also a method that is practically not applicable in the continuous operation of the machine tool.

The present invention has been made to solve the above-mentioned problems, to provide a convenience of recovery of the waste cutting oil. Specifically, the waste cutting oil can be recovered and separated at the same time, and the chips can be smoothly supplied to the storage tank with the separated cutting oil, thereby increasing the convenience of the user.

In accordance with an aspect of the present invention, there is provided a cutting oil suction cleaner for sucking waste cutting oil in which chips and cutting oil are mixed, the main body having an empty space therein. It is installed to be spaced apart from the bottom of the empty space, the chip is filtered and the cutting oil is passed through, the filter unit is connected to the main body on the filter unit, the inlet line, the waste cutting oil is sucked into the inlet line A cutting oil suction cleaner including a gas separation unit separating air from the waste cutting oil, and a power unit communicating with the main body to suck the air from the main body and discharge the air to the outside.

Here, the gas separation unit may include an inclined portion having an upper end connected to the empty space, an inclined portion having a smaller cross-sectional area toward the lower portion, and an extension portion extending downward from a lower end of the inclined portion.

Furthermore, each horizontal cross section of the main body and the gas separation unit is circular, and the inflow line is connected to the main body so as to be eccentric with the center of the cross section of the main body to use a cyclone phenomenon.

In addition, the main body is open toward the upper portion, the lid is detachably coupled to the upper portion of the main body, the power unit is installed on one side of the main body, it can be communicated to the main body by an air conditioning line connected to the lid. .

The gas separation unit according to the embodiment is in communication with the inlet line, is open toward the bottom, the upper and side circumference is connected to the first path, and the first path, 2, both the top and bottom open It may include a path.

Further, a skirt protruding downwardly inclined toward the first path may be further coupled to a lower end of the partition panel that divides the first path and the second path.

In addition, the lower end of the main body is further provided with a discharge line for discharging the collected cutting oil, the power unit may inject air into the main body, it can push the cutting oil to the discharge line.

In addition, the filter unit may be a mesh container including a side surface of which the upper end is placed on the locking projection protruding toward the interior of the empty space, and a bottom surface coupled to the lower end of the side surface, wherein the bottom surface of the container May be formed to be inclined.

Furthermore, the power unit has a motor and may serve as an inhaler and a blower. In addition, the lower portion of the main body is further equipped with a gauge for indicating the level of the cutting oil filled in the lower end of the empty space can increase the convenience.

According to an embodiment of the present invention, the waste cutting oil is sucked into the inside, and the chip and the cutting oil can be directly separated, thereby increasing the convenience of the work. Furthermore, by further comprising a blower function of the discharge line and the power unit, it is possible to inject the cutting oil separated into the storage tank at a higher position than the cutting oil suction cleaner, thereby increasing the convenience of the user. In addition, the gas separation unit separates the air and the waste cutting oil introduced into the apparatus with the suction of the waste cutting oil, it has an effect that can prevent the failure caused by the waste cutting oil is introduced into the power unit together with the air.

1 is a side view schematically showing a cutting oil suction cleaner according to an embodiment of the present invention.
2 is a cross-sectional view showing the inside of the main body employed in the embodiment shown in FIG.
3 is a schematic view of a power unit employed in the embodiment shown in FIG.
4 is a cross-sectional view showing a state of use of the embodiment shown in FIG.
5 is a cross-sectional view showing another use state of the embodiment shown in FIG.
6 is a perspective view of a gas separation unit according to another embodiment of the present invention.
7 is a cross-sectional view showing a state of use of the coolant suction cleaner employing the gas separation unit shown in FIG.

Hereinafter, with reference to the accompanying drawings will be described the configuration, function and operation of the cutting oil suction cleaner according to an embodiment of the present invention. However, in the embodiments, reference numbers for similar or identical components are used uniformly. In addition, in the following description, the waste cutting oil refers to cutting oil including a cutting chip (hereinafter referred to as 'chip') generated by processing.

1 and 2, the cutting oil suction cleaner 10 according to an embodiment of the present invention is a cutting oil suction cleaner for sucking waste cutting oil in which chips and cutting oil are mixed, and a main body having an empty space A therein. (One). It is installed to be spaced apart from the bottom of the empty space (A), the chip is filtered and the cutting oil is installed on the filter portion 2, the filter portion (2) passing through, the inlet line through which the waste cutting oil is sucked (3), the gas separator (4) for separating the air introduced into the inlet line (3) with the waste cutting oil inhaled, and in communication with the main body (1) on the gas separator (4), It includes a power unit (5) for providing a suction force to the inlet line (3).

The main body 1 is a cylinder member having an empty space A therein. This empty space A is an airtight space.

The horizontal cross section of the main body 1 may be circular or elliptical, or may be formed in a polygon such as a square. Inside the main body 1, the filter part 2 and the gas separation part 4 are attached.

The inflow line 3 is connected to a collection port where waste cutting oil, such as a machine tool (not shown), collects and communicates with an upper end of the main body 1. The inlet line (3) is equipped with a valve 31, the flow path of the inlet line (3) can be blocked by opening and closing the valve (31).

The main body 1 is open upward, and the lid 11 may be detachably coupled to the upper part of the main body 1. As shown in FIG. 2, this lid 11 is coupled to the body 1 by a clamp 111. In addition, as the sealing is provided at the lower portion of the lid 11, the airtightness inside the main body may be increased.

On the other hand, the power unit 5 is to suck the air inside the main body 1 to generate a suction force in the inlet line (3). 3 shows a schematic configuration of a power unit 5. The power unit 5 is coupled to the output shaft of the motor 52, the gear box 53 and the gear box 53 to increase the number of rotation is coupled to the motor 52, the output shaft of the motor 52 is rotated by receiving power, And a fan 54 provided therein. In this case, the gearbox 53 may be omitted depending on the performance of the motor 52 having sufficient torque and torque. In addition, the controller 55 may further include an on / off switch for controlling a power supply. When the user operates the switch, the fan 54 is rotated in the flow path by the rotation of the motor 52, thereby generating a suction force.

Furthermore, the power unit 5 may further have a function of a blower for injecting air into the empty space A of the main body 1. This blowing function may use a motor that is responsible for forward rotation and another motor that is responsible for reverse rotation. Alternatively, by using one motor, the rotational direction of the fan may be changed by changing the rotational direction of the motor, or the rotational direction of the fan may be changed by a combination of gears in the gearbox. As such, when the motor has one motor and is configured to serve as an inhaler and a blower, the use of one motor reduces the load of the cutting oil suction cleaner, thereby increasing transportability and reducing manufacturing costs.

The power unit 5 may be installed at one side of the main body 1 and communicate with the main body 1 through an air conditioning line 51 connected to the lid 11. Alternatively, the power unit 5 may be installed directly on the upper portion of the main body 1 without the air conditioning line.

As the power unit 5 is installed on the side of the main body 1 and the main body 1 and the power unit 5 are connected to the air conditioning line 51, the center of gravity of the cutting oil suction cleaner 10 is closer to the ground. do. Therefore, the coolant suction cleaner is built on the ground stably so that it does not fall easily due to the vibration or external force caused by the operation of the power unit. In addition, since the power unit is not coupled to the lid when the lid is opened to take out the filter unit installed inside the main body to the outside, only the lid can be easily separated, thereby increasing convenience in use.

On the other hand, the main body and the power unit is supported on the moving means (100). The moving means 100 includes a lower frame 101 on which the caster wheels 101a are mounted, and a pair of upper frames 102 standing on the lower frame 101. The main body 1 is mounted between the upper frames, and the main body 1 and the upper frame 102 are coupled. In addition, the handle bar (102a) is provided between the upper frame (102).

2 shows the internal structure of the main body.

Inflow line (3) is in communication with the upper end of the side of the main body (1). Chips are filtered in the empty space A of the main body 1, and the filter part 2 through which the cutting oil passes is mounted so as to be spaced apart from the bottom of the empty space A. FIG.

In this case, the filter part 2 may include a side surface 21 having a flange 211 formed at an upper end thereof, and a bottom surface 22 coupled to a lower end of the side surface thereof, and may have a shape of a recessed bowl. The filter portion 2 is formed of a mesh having voids so that chips having particles larger than the voids are trapped in the mesh, and the cutting oil passes through the voids and moves downward.

A locking jaw 12 protruding toward the center is provided on the inner wall of the empty space A, and the flange 211 of the container is caught by the locking jaw 12. Below the filter part 2 which occupies the intermediate height of the main body 1, it becomes a storage space where cutting oil collects.

Furthermore, the upper portion of the flange 211 is provided with a handle 23 protruding upward. The operator pulls the handle 23 of the filter part 2 through the upper part of the open body 1 so that the filter and the chips collected in the filter part can be pulled out of the main body.

On the other hand, the gas separation unit 4 is a member to help the separation of air from the waste cutting oil sucked into the inlet line (3) to prevent cutting oil or chips from flowing into the power unit.

The gas separation unit 4 is in communication with the inlet line 3, is open toward the bottom, the upper and side circumference is connected to the first path (W1) blocked, and the first path (W1) , And a second path W2 in which both top and bottom sides are open. Here, the first path W1 is a space in which waste cutting oil or air flows, and the second path W1 is a space in which air moves.

In one embodiment of the gas separation unit shown in FIG. 2, the gas separation unit 4 has an upper end connected to the empty space A, an inclined portion 41 having a smaller cross-sectional area toward the lower portion, and the inclined portion 41. It includes an extension 42 extending downward from the bottom of the).

The inclined portion 41 has a truncated conical shape protruding downward. In addition, the extension part 42 has a cylindrical shape extending substantially vertically at the lower end of the inclined part 41. The installation height of the gas separation unit 4 is the height toward which the inlet line 3 connected to the main body 1 faces the outer surface of the inclined portion 41. Here, the first path W1 is a space formed by the outer circumferential surface of the gas separation unit 4 and the inner surface of the main body 1, and the second path W2 is a vertically penetrated space formed inside the extension part 42. to be.

On the other hand, a flange 411 may be formed on the top of the inclined portion 41 that extends around the top of the open body 1. In addition, the lower surface of the flange 411 is further provided with a sealing member 412, it is possible to maintain the circumference and air tightness of the main body. At this time, the lid 11 covers the upper portion of the flange 411 of the inclined portion 41, and is configured to be engaged with the main body by the clamp 111 provided in the main body 1.

Further, each horizontal cross section of the empty space A and the gas separation unit 4 is circular, although not shown, the inflow line 3 is eccentric with the center of the circular cross section of the main body 1. It can be connected to (1). In this case, the waste cutting oil and the air flowing into the main body 1 form a swirl flow in the main body 1, in particular, the air smoothly rotates along the surface of the gas separation part and the empty space having a circular cross section. And form a cyclone.

On the other hand, the lower part of the main body 1 is equipped with a gauge 13 for measuring the level of the cutting oil filled in the lower end of the empty space (A), the inside of the main body 1 during the operation of the cutting oil suction cleaner 10 Allows the operator to know how much coolant is stored. In detail, the gauge 13 includes an elbow pipe 131 penetrating through the lower end and the middle of the main body 1, and a transparent pipe 132 connecting the elbow pipes 131 up and down. As shown in Figure 4 or 5, through the transparent pipe 132 it is possible to know the level of the cutting oil collected in the interior of the main body (1). In this case, the operator can accurately know the amount of cutting oil collected even without opening the main body each time. On the other hand, although not shown, the gauge can be replaced with a water level sensor of a known configuration. The measured value of the water level sensor may be configured to be presented to the operator by the display means provided in the control unit.

Furthermore, a discharge line 6 for discharging the collected cutting oil may be further provided at the lower end of the main body 1. The valve 61 which can open and close the flow path of this discharge line 6 is attached. In this case, the separated cutting oil can be discharged to the outside even when the main body is not tilted through the discharge line.

4 to 5, the operation of the cutting oil suction cleaner according to an embodiment of the present invention will be described. Hereinafter, a block arrow is a flow of air, and a black arrow means a flow of cutting oil or waste cutting oil.

First, FIG. 4 is a diagram of a state in which suction power is generated by the power unit 5 to suck and discharge air in the main body 1.

By the suction force of the power unit 5, the air inside the main body 1 exits to the outside through the power unit and becomes a negative pressure condition, the inlet line 3 has a suction force. Waste cutting oil and air introduced into the main body 1 into the inflow line 3 hit the outer surface of the inclined portion 41, and then fall below the empty space A. At this time, the waste cutting oil with a large load falls to the filter unit 2, and the air is sucked up after being raised toward the air conditioning line 51 connected to the upper portion of the main body 1.

The extension part 42 is substantially parallel to the direction of gravity, thereby preventing the waste cutting oil flowing down the outer surface of the extension part 42 from being raised along the lower end and the inner circumferential surface of the extension part 42 by the flow of air. It becomes possible.

In the waste cutting oil dropped to the bottom, the chips are filtered out of the filter part 2, and the cutting oil passes through the filter part 2 and is collected at the lower end of the empty space A.

At this time, the main body 1 and the gas separation unit 4 has a circular cross-section, when the waste cutting oil flows eccentrically, as shown in Figure 4, the air is rotated on the outer peripheral surface of the gas separation unit 4 Will descend. In addition, most of the waste cutting oil having a higher density than air due to the cyclone effect is moved toward the inner wall of the main body 1 and flows down the inner wall of the main body 1. Thereafter, the waste cutting oil passes through the filter unit 2 and the chips are separated from the cutting oil. The air is combined at the lower end of the extension part 42 and is quickly discharged to the outside of the main body 1 by the suction force transmitted from the lid.

In this case, since the waste cutting oil is moved toward the inner wall of the main body in accordance with the flow of air forming the swirl flow, there is almost no waste cutting oil flowing through the outer peripheral surface of the extension part. Therefore, there is almost no waste cutting oil flowing along the outer surface of the extension portion and rising toward the lid by the flow of air rising through the inside of the extension portion, so that the amount of waste cutting oil in the discharged air can be significantly reduced. do.

Figure 5 shows the process of discharging the cutting oil collected in the lower end of the empty space of the main body to a separate storage tank.

The valve 31 of the inlet line 3 is locked and the valve 61 of the outlet line 6 is open. Then, the power unit 5 is operated by the blower, the air introduced through the air conditioning line 51 is injected into the main body (1). The inside of the main body 1 is positive pressure, the cutting oil collected in the lower end of the empty space (A) is discharged to the discharge line (6).

Since the coolant discharges the coolant at a constant pressure, the coolant can be sent to the storage tank at a position higher than the level of the coolant collected in the empty space. If the storage tank is at a lower level than the coolant suction cleaner, the operation of the power unit may not be required.

6 and 7 illustrate a gas separation unit according to another embodiment and an embodiment using the gas separation unit.

The gas separation part 4 according to another embodiment of the present invention communicates with the inflow line 3, is open toward the lower side, and the upper and side circumferences are blocked by the first path W1, and the first path. It is formed to be horizontally connected to the (W1), and includes a second path (W2) that is open both top and bottom.

Specifically, the side frame 43 in contact with the inner surface of the body 1, the cutout portion 431 corresponding to the inflow line 3 is formed, the side frame 43 transverse to the inner side of the side frame 43 Compartment panel 44 is formed in a fork, and the upper side panel 45 to block one side of the side frame 43 is formed with the cutout 431 and the upper end of the space formed by the partition panel 44.

In FIG. 7, the first path W1 opened downward by one side of the side frame 43 having the cutout, the partition panel 44 and the top panel 45 is formed. On the right side, a second path W2 having an upper portion and an lower portion is formed. Waste cutting oil and air introduced into the main body 1 through the inflow line 3 collide with the partition panel 44 or are not collided and are moved to an open lower portion. At this time, the first path (W1) is formed with a relatively sufficient space compared to the inlet line (3), the flow rate of the sucked air is significantly slowed in the first path (W1), the high density waste cutting oil is As described above, the chip is separated by the filter unit 2 as described above.

Meanwhile, the sucked air rises over the lower end of the partition panel 44 and rides through the second path W2 and is discharged to the outside of the main body 1 along the air conditioning line 51 provided at the upper part of the main body 1. .

In this case, a skirt 441 protruding downwardly inclined toward the first path W1 may be further provided at the lower end of the partition panel 44.

When the skirt 441 is further provided, the waste cutting oil flowing down the partition panel 44 is inclined along the surface of the skirt 441, and the air is also along the skirt 441 in the same direction as the flow of the waste cutting oil. Is moved. Thereafter, the air is shifted at an acute angle toward the second path W2 at the end of the skirt, and the waste cutting oil having a high specific gravity does not follow the air and falls down from the end of the skirt. Therefore, almost no waste cutting oil is contained in the air sucked to the outside of the main body.

In addition, the bottom surface 22 of the filter part 2 is formed inclined. In this case, the lowest bottom surface 22 may face the first path W1. The inclined bottom surface 22 allows the chips filtered out of the waste cutting oil to be sequentially stacked at a low height so that a part of the bottom surface 22 is exposed without being covered by the chips. Therefore, the voids of the entire bottom surface can be prevented from being covered by the chip, and the cutting oil can smoothly pass through the filter part. In particular, when the cutting oil suction cleaner is manufactured in a large capacity, it has an advantage of maintaining continuous filtering performance while suctioning a large amount of waste cutting oil.

Cutting oil suction cleaner according to an embodiment of the present invention is to suck the waste cutting oil, separation of the chip and the cutting oil at once. Furthermore, the coolant can be sent to the storage tank after the chip separation through the supply unit and the discharge line to increase the convenience of work.

10: suction cleaner
1: main body
A: empty space 11: lid 111: clamp
12: engaging jaw 13: gauge 131: elbow pipe 132: transparent pipe
2 filter unit
21 side 211 flange 22 bottom 23 handle
3: inlet line 31: valve
4: gas separation unit
W1: first path W2: second path 41: inclined portion
411: flange 412: sealing member 42: extension part
43: side frame 431: incision 44: partition panel
441: skirt 45: top panel
5: power unit
51: air conditioning line 52: motor 53: gearbox
54: fan 55: control unit
6: discharge line 61: valve
100: means of transportation
101: lower frame 101a: caster wheels
102: top frame 102a: handle bar

Claims (11)

In a coolant suction cleaner that sucks waste cutting oil mixed with chips and coolant,
Body with empty space inside.
The filter unit is installed to be spaced apart from the bottom of the empty space, the chip is filtered and the cutting oil passes through,
An inlet line connected to the main body on the filter part and into which the waste cutting oil is sucked;
A gas separation unit for separating the air introduced into the inlet line from the waste cutting oil, and
In communication with the main body includes a power unit for sucking the air in the main body to discharge to the outside,
The gas separation unit
A first path in communication with the inlet line, open toward the bottom, a closed first and side circumference, and
Cutting oil suction cleaner comprising a second path connected to the first path, both the upper and lower portions are open. In claim 1,
The gas separation unit
An upper end is connected to the empty space, and an inclined part having a smaller cross-sectional area toward the lower part thereof, and
Cutting oil suction cleaner comprising an extension extending downward from the lower end of the inclined portion. In claim 2,
Each horizontal cross section of the main body and the gas separation unit is circular,
Cutting oil suction cleaner is connected to the main body is eccentric to the center of the cross-section of the main body. 4. The method of claim 3,
The main body is open toward the top,
A lid is detachably coupled to the upper portion of the main body,
The power unit is installed on one side of the main body, the coolant suction cleaner is in communication with the main body in an air conditioning line connected to the lid. delete In claim 1,
Cutting oil suction cleaner is further coupled to the lower end of the partition panel for partitioning the first path and the second path protruding downwardly inclined toward the first path. The method according to any one of claims 1 to 4 and 6,
The lower end of the main body is further provided with a discharge line for discharging the collected cutting oil,
And the power unit injects air into the main body to push the cutting oil to the discharge line. In claim 7,
The filter unit
Cutting oil suction cleaner of claim 1, wherein a mesh container includes a side surface of which an upper end is placed on a locking projection protruding toward the inside of the empty space and a bottom surface that is coupled to a lower end of the side surface. 9. The method of claim 8,
Cutting oil suction cleaner is formed inclined bottom surface of the container. In claim 7,
The power unit has a motor, cutting oil suction cleaner that can serve as an inhaler and a blower. 11. The method of claim 10,
The lower part of the main body
Coolant suction cleaner further comprises a gauge for indicating the level of the coolant filled in the lower end of the empty space.

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