JP6918089B2 - Cutting oil refiner - Google Patents

Description

The present invention relates to a cutting oil refining apparatus, and more specifically, an oil used for cooling in order to reduce frictional heat generated when a workpiece is machined by a machine tool, a rolling mill, or another cutting machine (hereinafter referred to as a cooling machine). The present invention relates to a cutting oil refining apparatus capable of efficiently removing iron powder (chips) remaining in (referred to as cutting oil) and efficiently cleaning the apparatus.

When machining a workpiece using a machine tool, rolling mill, or other cutting machine, high heat is generated due to high-speed machining. Supply cutting oil to the cutting site. Cutting oil that has been used for a long period of time includes not only thick iron powder (chips) generated in the processing process but also fine iron powder (chips) such as powder.

In order to reuse the cutting oil, it is necessary to refine the cutting oil that has been used repeatedly for a certain period of time, and the large chips contained in the cutting oil sink downward due to gravity and are easy to remove. Fine chips (hereinafter referred to as fine chips) are difficult to remove. If the fine chips circulate together with the cutting oil, they will have adverse effects such as wear of the machine parts to be manufactured, deterioration of surface quality, shortening of the service life of the cutting oil, and environmental pollution.

The invention shown in Patent Document 1 proposed to solve this problem removes iron powder particles and various foreign substances by using a filtration method and a magnetic force method, and can save costs by reusing cutting oil. It also prevents environmental pollution.

However, the machine tool oil refiner (hereinafter referred to as an oil refiner) of Patent Document 1 removes fine chips by using the magnetic force of a bar magnet provided inside, but collects the amount of fine chips. The surface of the bar magnet was cleaned without confirmation. For this reason, cleaning takes a predetermined time regardless of the amount of fine chips collected, which has the disadvantage of increasing the labor of the operator. Further, when cleaning the bar magnet and the oil refining device, the bar magnet is taken out and placed outside the oil refining device. Therefore, although it depends on the place where the bar magnet is placed, impurities outside the oil refining device adhere to the bar magnet. was there.

Republic of Korea Patent Registration No. 1142966 "Oil Refining Equipment for Machine Tools"

An object of the present invention is to monitor the amount of fine chips collected on the surface of a bar magnet in real time by a laser sensor, so that when a predetermined amount of fine chips are collected, they are collected on the surface of the bar magnet. It is an object of the present invention to provide a cutting oil refining apparatus capable of removing fine chips and cleaning the entire apparatus without storing the bar magnet provided inside in a specific place outside.

The cutting oil refining apparatus according to the present invention is formed by arranging in series by a plurality of partition wall members, a plurality of filtration tanks provided with a plurality of sensor modules inside, and a lid connected to an upper opening of the plurality of filtration tanks. A tank composed of a body, a magnetic welding means that is charged into the inside of the filtration tank and collects fine chips contained in the waste oil in the filtration tank on the surface by magnetic force, and the lid body are coupled to the lid. A cleaning tool that removes fine chips collected on the surface of the magnetizing means, and a pumping means that is provided in the final filtration tank among the plurality of filtration tanks and transfers the final refined oil to the outside. , The sensor module measures the thickness of the fine chips collected on the surface of the magnetizing means, and if it is determined that the measured thickness is thicker than a predetermined thickness, a cleaning instruction is given. The lid body includes a monitoring window made of a transparent material that allows an operator to look into the inside of the filtration tank from the lid body, a cleaning instruction means activated in response to the cleaning instruction command, and a cleaning instruction means that is activated in response to the cleaning instruction command. It is characterized by including.

The lid is inserted into a rotating shaft that is inserted into a rotating groove of a support frame provided on the inner wall of the filtration tank and rotates, and a fixing groove formed on a side surface of the tank that contacts the upper part of the filtration tank. It is characterized by including a fixed shaft.

The sensor module has a sensor for measuring the thickness of the fine chips collected by the magnetizing means and the thickness of the fine chips collected by the magnetizing means measured by the sensor. It is characterized by including a calculation means for comparing with a predetermined thickness and a communication means for transferring the cleaning instruction command to the cleaning instruction means.

According to the cutting oil refining apparatus of the present invention, iron powder remaining in oil used for cooling is efficiently removed in order to reduce frictional heat generated when machining a workpiece with a machine tool, a rolling mill, and another cutting machine. It can be removed and the device can be cleaned efficiently.

It is a perspective view of the cutting oil refining apparatus according to this invention. It is a right sectional view of the cutting oil refining apparatus according to this invention. It is a side sectional view of the cutting oil refining apparatus according to this invention. It is a figure which shows the detailed structure of a lid body. It is a figure which shows the use example of a lid body.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. The same drawing code attached to each drawing indicates the same member.

FIG. 1 is a perspective view of the cutting oil refining apparatus according to the present invention, FIG. 2 is a front sectional view of the cutting oil refining apparatus according to the present invention, and FIG. 3 is a side sectional view of the cutting oil refining apparatus according to the present invention. Is.

As shown in FIG. 1, the cutting oil refining apparatus 1000 according to the present invention has a tank 2 and a tank that flow into the inside through the inflow section 100 and discharge the internally refined oil to the outside through the discharge port 200. The pumping means 6 for forcibly transferring the oil refined in 2 to the outside through the discharge port 200 is included.

The tank 2 is manufactured by welding a metal plate material into a rectangular parallelepiped, and the inside is divided into a plurality of filtration tanks 21 to 24 by using a plurality of partition wall members 51 to 53. Through holes 50 are provided in the upper portions of the plurality of partition wall members 51 to 53 so that the waste oil sequentially moves from one filter tank to the adjacent filter tank.

Of the plurality of filtration tanks 21 to 24, the open upper portion of the three filtration tanks 21 to 23 covers the upper portion of each of the filtration tanks, or the first groove 3-3-1 formed in the tank 2. After moving upward by a certain distance, the lid 3 is provided to open the upper part of the filtration tank by rotating around the first groove 3-3-1. The rotated lid 3 uses a second groove 3-4-1 formed in the tank 2 so that further rotation and movement do not occur. The detailed structure of the lid 3 and the opening method will be described later in the description of FIG.

At the center of the lid 3, there is a cleaning tool 32 that is charged into the filtration tank and uses magnetic force to clean the surface of the magnetic bonding means 41 that collects fine-sized chips contained in the waste oil in the filtration tank. It is provided. The cleaning tool 32 includes a hollow cylindrical member 322 and a donut-shaped ring member 324 provided at the upper end and the lower end of the cylindrical member 322 to clean the surface of the magnetically attached means 41 that penetrates closely. .. When the magnetizing means 41 is lifted upward while the ring member 324 is fixed, the fine chips forcibly collected on the outer surface of the magnetizing means 41 which is in close contact with the inner surface of the ring member 324 can be removed. can.

Here, the magnetizing means 41 is used for removing iron powder (chips) contained in waste oil, and for convenience of understanding, it will be described below as a bar magnet.

Since the plurality of bar magnets 41 to 43 charged into the three filtration tanks 21 to 23 have the same structure, the first bar magnet 41 used in the first filter tank 21 will be described as an example. ..

As shown in the circle of FIG. 3, the first bar magnet 41 is formed on the outer cylinder 402 having a certain length inserted into the cylindrical member 322 of the lid 3 and the upper end of the outer cylinder 402. A handle 404 that is locked to the upper end of the cylindrical member 322 and can be gripped by hand, a large number of magnetic bodies 409 inserted inside the outer cylinder 402, and a separating member 406 arranged between the magnetic bodies 409. include.

It is desirable that the magnetic material 409 is arranged in a disk shape or a donut shape having a certain thickness. The separating member 406 is sandwiched between the magnetic body 409 and the magnetic body 409 to prevent interference of the magnetic field, and is formed thicker than the magnetic body 409 so that the magnetic field does not pass through, and the material thereof. Is preferably a synthetic resin material.

Discharge valves 300 for discharging sludge and heavy chips are provided below the plurality of filtration tanks 21 to 24, respectively, and a plurality of discharge valves 300 are provided below the inside of the tank 2 so as to be inclined toward the discharge valves 300. By forming the discharge guide panel 27 of the above, sludge and heavy chips collected under the filtration tank can be easily moved toward the discharge valve 300.

When the plurality of filtration tanks 21 to 23 are made of an iron plate material, there may be a problem that the bar magnet 41, which is a magnetic material charged into the inside of the filtration tank, is bonded to the inner wall of the filtration tank. Since the magnetic force of the bar magnet 41 is as strong as about 10,000 gauss, there arises a problem that it is difficult to remove the bar magnet 41 after the bar magnet 41 is magnetized with the inner surface of the filtration tank. Therefore, in order to solve such a problem of magnet coupling (magnetization), a magnetic blocking member 8 is attached to the inner wall of the filtration tanks 21 to 23.

In the magnetic blocking member 8, a rod-shaped mounting base 82 made of a non-ferrous metal or synthetic resin material is vertically attached to the inner wall surface in order to block the magnetic adhesion force, and a large number of mounting bases 82 made of a synthetic resin material are inside the mounting base 82. The ring bodies 84 can be installed in series in the vertical direction so as not to be magnetized on the inner wall surface during the pull-in and pull-out operations of the bar magnet 41.

In particular, by providing the sensor module 82-1 on the inner surface of the mounting base 82, the thickness of the fine chips forcibly collected on the surface of the bar magnet 41 in the filtration tank by magnetic force was measured and measured. When the thickness is thicker than a predetermined thickness, the cleaning instruction means 3-2 (described later) provided on the lid 3 is activated to instruct the operator to clean the bar magnet 41. Conventionally, it is not possible to confirm whether or not fine chips are collected on the surface of the bar magnet 41 to some extent, and the bar magnet 41 is forcibly washed after a certain period of time has passed from the start of waste oil refining. It was troublesome.

The sensor module 82-1 includes a sensor (a) for measuring the thickness of the bar magnet 41, and a calculation means (b) for comparing the thickness of the bar magnet 41 measured by the sensor (a) with a predetermined thickness. , The communication means (c) for transferring the cleaning instruction command to the cleaning instruction means 3-2. The installation position and the number of sensor modules 82-1 can be easily determined by the producer. There are various types of sensors (a), and for example, a laser sensor can be used for observing the inside of waste oil.

Since the conditions in the filter tanks are different from each other, the reaction results of the sensor modules 82-1 installed in each filter tank should be different from each other, and the cleaning instruction means 3-2 activated there should be different. It will be different from each other. Therefore, by utilizing the sensor module 82-1 and the cleaning instruction means 3-2, it is possible to reduce the trouble of performing cleaning all at once.

The waste oil that has flowed into the first filtration tank 21 through the inflow section 100 moves to the second filtration tank 22 through the through hole 50 while filling along the wall surface of the first filtration tank 21. In this process, sludge and heavy chips will sink below the first filtration tank 21. The movement and precipitation of waste oil from the second filter tank 22 to the third filter tank 23 is the same as the description of the first filter tank 21 and the second filter tank 22, so the description thereof is omitted here. ..

The refined oil that has reached the fourth filter tank 24 via the first filter tank 21, the second filter tank 22, and the third filter tank 23 activates the pumping means 6 and discharges the outlet 200. It is discharged to the outside through. In FIG. 1, it is shown that the lid 3 is not provided in the fourth filtration tank 24, but the lid 3 may be provided in the fourth filtration tank 24.

The pumping means 6 is connected to a fourth filtration tank 24, a suction pipe 64 for sucking oil is connected to one side, and a discharge pipe 66 for discharging sucked oil is connected to the other side, and a pump 62. A pressure gauge 78 is formed with a lead port 72 connected to the discharge pipe 66, a discharge port 200 for discharging oil, and a recovery port 76 for discharging the remaining oil, and displays the pressure of the oil discharged to one side. Includes a branch member 7 to which the oil is coupled, and a return pipe 79 which is connected to the recovery port 76 of the branch member 7 and is provided so as to communicate with the fourth filtration tank 24 and has a valve.

The pump 62 is for recovering refined oil and supplying it to the machine tool again, and a suction pipe 64 is formed on one side and a discharge pipe 66 is formed on the other side. .. The branch member 7 is coupled to the discharge pipe 66 discharged from the pump 62, and a part of the discharged oil is passed through the discharge port 200 and the hose (h) connecting the discharge port 200 and the machine tool. , The oil that has been supplied and cannot be stored by the machine tool (not shown) is collected in the fourth filtration tank 24 via the return pipe 79.

The feature of the present invention is that the operator can visually monitor the inside of the filtration tank through the lid 3, and when the amount of fine chips collected on the surface of the bar magnet reaches a certain amount, a sensor is used. By detecting using the module 82-1 and notifying the operator of this, the operator does not need to clean the bar magnet in a fixed time unit, and the bar magnet and the filter tank are cleaned when the bar is cleaned. The lid 3 with the magnet attached can be formed while being attached to the cutting oil refining device 1000.

4A and 4B are diagrams showing detailed configurations of the lid body in all of (A), (B) and (C), and FIGS. 5A and 5B are diagrams showing examples of use of the lid body in FIGS. 5A and 5B.

Among the configurations of the cutting oil refining apparatus according to the present invention, the detailed configuration of the lid and the usage example will be described below.

As shown in FIG. 4, the lid 3 includes a monitoring window 3-1 formed in an intermediate portion, a cleaning instruction means 3-2, a rotating shaft 3-3, and a fixed shaft 3-4.

The monitoring window 3-1 is made of a transparent material through which the operator can see the inside of the filtration tank from the lid 3. After the operator visually confirms, it is possible to determine whether or not the bar magnet 41 can be washed.

The cleaning instruction means 3-2 can be realized by a speaker that is activated in response to a cleaning instruction command generated by the sensor module 82-1 and emits a constant sound as well as a visually recognizable light form. be. In order to be activated by the cleaning instruction command, a communication means for receiving the cleaning instruction command transmitted from the sensor module 82-1 should be built-in, and is the power supply required for activation built-in? , There should be a configuration supplied from an external power source. Since such a configuration can be easily embodied, detailed description thereof will be omitted.

The rotary shaft 3-3 is inserted into the rotary groove 3-3-1 formed in the support frames 21-1, 22-1, 23-1 formed on the inner wall of each filtration tank, and the rotary groove 3-3-3 is inserted into the rotary groove 3-3-1. Rotate around 1. As shown in FIG. 5, since the upper part of the filtration tank at the end of the lid 3 and the open portion are the same, in order to rotate the lid 3, the lid 3 is moved at a constant distance from the rotation shaft 3-3. After lifting (see FIG. 5 (A)), rotate (see FIG. 5 (B)).

The fixed shaft 3-4 is inserted into a fixed groove 3-4-1 formed on the side surface of the tank 2 outside the upper part of each filtration tank, and has been rotated to the outside of the tank 2 along the rotating shaft 3-3. The lid 3 is fixed to the tank 2. Since the lid 3 was rotated while being lifted by a certain distance from the tank 2, the fixed shaft 3-4 is inserted into the fixing groove 3-4-1 while moving the rotated lid 3 downward again. ..

Since the bar magnet 41 is installed as it is on the lid 3 with the upper part of the filter tank open, it is not necessary to move the bar magnet 41 to another clean place and store it when cleaning the filter tank. ..

As described above, the technical idea of the present invention has been described together with the accompanying drawings, but the present invention is not limited to this, and various modifications and changes are possible.

2 Tank 3 Lid 3-1 Monitoring window 3-2 Cleaning instruction means 3-3 Rotating shaft 3-3-1 First groove 3-4 Fixed shaft 3-4-1 Second groove 6 Pumping means 7 Branch member 8 Magnetic blocking member 21 to 24 Filter tank 21-1, 22-1, 23-1 Support frame 27 Discharge guide panel 32 Cleaning tool 41 Magnetizing means 41, 42, 43 Bar magnet 50 Through hole 51 to 53 Partition member 62 Pump 64 Suction pipe 66 Discharge pipe 72 Inlet 76 Recovery port 78 Pressure gauge 79 Return pipe 82 Mounting base 82-1 Sensor module 84 Ring body 100 Inflow part 200 Discharge port 300 Discharge valve 322 Cylindrical member 324 Ring member 402 Outer cylinder 406 Separation Member 409 Magnetic material 1000 Cutting oil refiner

Claims (2)

A plurality of filtration tanks formed in series by a plurality of partition wall members and provided with a plurality of sensor modules inside, and a plurality of filtration tanks .
A tank comprising a lid coupled to the upper opening of the filter tank of multiple,
A magnetic electrodeposition means that is charged into the inside of the filtration tank and magnetically collects fine chips contained in the waste oil in the filtration tank on the surface.
A cleaning tool that is bonded to the lid and removes fine chips collected on the surface of the magnetizing means .
Among the filter tank of several final the provided filtration tank, comprising: a pumping means for transferring the final purified oil to the outside, the,
The lid is
A rotating shaft that is inserted into a rotating groove formed in a support frame provided on the inner wall of the filtration tank and rotates, and a fixed shaft that is inserted into a fixing groove formed on the side surface of the tank that contacts the upper part of the filtration tank. And, including
The sensor module measures the thickness of fine chips collected on the surface of the magnetizing means, and if it is determined that the measured thickness is thicker than a predetermined thickness, a cleaning instruction command is generated. ,
The lid is seen containing a monitoring window operator is made of a transparent material to peep the interior of the filtration tank from the lid, and washed indicating means is activated in response to the cleaning instruction command, and
The lid body is rotated after being lifted by a certain distance from the rotation axis.
The fixed shaft fixes the lid, which has been rotated to the outside of the tank, to the tank along the rotating shaft.
A cutting oil refining apparatus characterized in that the magnetizing means is installed as it is on the lid body in a state where the upper part of the filtration tank is open. The sensor module is
A sensor for measuring the thickness of the fine chips collected by the magnetizing means and the thickness of the fine chips collected by the magnetizing means measured by the sensor are compared with a predetermined thickness. The cutting oil refining apparatus according to claim 1, further comprising a calculation means for performing a cleaning instruction and a communication means for transferring the cleaning instruction command to the cleaning instruction means.

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