KR101635118B1 - Auto dilution suppling system of cutting oil - Google Patents

Abstract

The present invention discloses an automatic dilution feed system for a coolant. The disclosed automatic coolant supply system includes an apparatus for diluting a stock solution, which comprises a diluting solution and a stock solution mixed with the diluting solution received in the diluting solution storing chamber and accommodated in the diluting solution storage tank, and a diluting coolant A diluting cutting oil supply unit for supplying the diluted cutting oil according to the use of the diluting cutting oil, and a dilution cutting oil supply unit connected to the diluted cutting oil supply unit, for supplying the diluted cutting oil stored in the diluted cutting oil supply unit to the dilution cutting oil supply unit And an individual cutting oil supply unit provided at the position.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic diluting feed system for a cutting oil,

The present invention relates to an automatic dilution feed system for a cutting oil, and more particularly, to an automatic dilution feed system for a cutting oil to uniformly mix raw feedstock and dilution liquid at a uniform pressure.

Generally, a cutting tool is used in a machine tool such as a CNC lathe, an NC lathe, a milling machine, a grinding machine, etc. used for cutting or polishing machine parts, in order to cool the heat due to friction during processing,

The cutting oil lowers the temperature of the cutting tool and the workpiece during the cutting process of the cutting machine, and imparts lubricity to the workpiece and the cutting tool to perform a smooth cutting operation, which is an essential addition element in the cutting process.

The cutting oil is mixed with the raw material for cutting at a specific ratio. Since the raw material for cutting is contained in a heavy container, when the cutting oil is supplied to the machine tool, the material is filled into the container using a pump. Diluted.

However, in the conventional method of diluting the cutting oil, since the raw material for cutting and the water for diluting are mixed in the mass of snow, there is a problem that the concentration of the diluting cutting oil can not be kept constant.

Therefore, there is a need to improve this.

On the other hand, Korean Patent Laid-Open Publication No. 10-2003-0093374 (published on December 13, 2003) discloses "a cutting oil mixing and feeding device for a machine tool."

It is an object of the present invention to provide an automatic diluting coolant supply system which can uniformly mix raw stock and dilute liquid at uniform pressure.

In order to accomplish the above object, according to the present invention, there is provided an automatic dilution feeding system for a cutting oil, comprising: a diluting liquid accommodating portion for accommodating a diluting liquid in a diluting liquid storing portion; A stock diluting device; A diluting coolant supply unit for supplying and storing a diluting coolant from the diluent reducing raw material and discharging the diluted coolant according to use of the diluted coolant; And a coolant supply unit connected to the diluted coolant supply unit and disposed at a lower position than the diluted coolant supply unit so that the diluted coolant stored in the diluted coolant supply unit is supplied by the position energy.

In addition, the apparatus for diluting the stock solution comprises: a main body having the diluting liquid storage unit and the diluted cutting oil storage unit, respectively; A fluid mixing unit coupled to the cutting fluid storage tank for containing the cutting fluid, wherein the fluid mixing unit mixes the diluted fluid and the stockant; A first pump provided in the main body for transferring the diluent in the diluent storage unit to the diluted coolant storage unit through the fluid mixing unit; And a second pump provided in the main body for transferring the diluted cutting oil in the diluted cutting oil storage part.

The diluted cutting oil supply unit may include a main storage tank connected to the undiluted solution for containing the diluted cutting oil; A coolant sensing member provided in the main storage tank for sensing a level of the diluted coolant; And a coolant transferring line connecting the main storage tank and the undiluted cutter to prevent the backflow while filtering the foreign substances of the diluted coolant transferred to the diluted coolant supply unit.

The individual cutting oil supply unit may include an auxiliary storage tank provided corresponding to a plurality of machine tools in which the diluted cutting oil is used to store the diluted cutting oil; An individual supply line connecting the auxiliary storage tank and the diluting coolant supply unit; And a coolant shut-off valve provided in the auxiliary storage tank to cut off supply of the diluted coolant.

As described above, the automatic dilution coolant supply system according to the present invention is capable of mixing the dilution liquid with the cutting stock solution while constantly feeding the dilution liquid to the set pressure by using the first pump, unlike the prior art, There is an advantage that the mixing ratio can be precisely adjusted.

Further, according to the present invention, there is an advantage that the diluted cutting oil can be automatically supplied and stably supplied according to the use of the diluted cutting oil.

Further, according to the present invention, there is an advantage that the pressure of the tap water which is a diluting liquid is not affected by the change, and the diluting liquid can be transferred at a uniform pressure.

1 is a schematic view for explaining an automatic dilution feeding system for a coolant according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a stock solution diluting device according to an embodiment of the present invention. FIG.
3 is a front view of Fig.
Fig. 4 is a rear view of Fig. 2; Fig.
Fig. 5 is a plan view of Fig. 2. Fig.
FIG. 6 is a perspective view showing a state in which a fluid mixing unit according to an embodiment of the present invention is coupled to a drum. FIG.
7 is a perspective view showing a fluid mixing unit according to an embodiment of the present invention.
8 is an exploded perspective view of Fig.
Fig. 9 is a sectional view of Fig. 7. Fig.
10 is a perspective view illustrating a nin-cutting stock solution sensing unit according to an embodiment of the present invention.
11 is a perspective view illustrating a diluting cutting oil supply unit and a cutting oil individual supply unit according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an automatic dilution coolant supply system according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Accordingly, the definitions of these terms should be based on the contents of this specification.

FIG. 1 is a schematic view for explaining an automatic diluter supply system for a cutting oil according to an embodiment of the present invention, FIG. 2 is a perspective view showing a stock diluting device according to an embodiment of the present invention, FIG. 3 is a front view Fig. 4 is a rear view of Fig. 2, and Fig. 5 is a plan view of Fig.

6 is a perspective view showing a state in which a fluid mixing unit according to an embodiment of the present invention is coupled to a drum, FIG. 7 is a perspective view showing a fluid mixing unit according to an embodiment of the present invention, and FIG. Fig. 9 is an exploded perspective view of Fig. 7, and Fig. 9 is a sectional view of Fig.

FIG. 10 is a perspective view of a cutting stock sensing unit according to an embodiment of the present invention, and FIG. 11 is a perspective view illustrating a diluting cutting oil supply unit and a cutting oil individual supply unit according to an embodiment of the present invention.

Referring to FIGS. 1 to 5, an automatic cutter supply system for a cutting oil according to the present embodiment includes a stock cutter diluting device 100 for mixing a diluting solution and a stock stock at an accurate ratio, And a coolant supply unit 300 for supplying the diluted coolant of the diluted coolant supply unit 200 to a plurality of machine tools (not shown), respectively.

The automatic dilution feeding system of the cutting oil is connected to the faucet through the tap water supply line 101 so that the diluting device 100 can use water as the diluting liquid and tap water discharged to the tap water supply line 101 is diluted with the stock solution Is stored in the device 100 and used as diluent. In addition, the cutting fluid automatic dilution feeding system mixes the stock solution of the stocking tank 103 with the diluting solution while feeding the diluting solution stored in the stock solution diluting device 100 at a constant pressure.

The apparatus 100 for diluting a stock solution according to the present embodiment includes a main body 110 for storing a diluting solution and a diluting cutting oil, a fluid mixing unit 110 for mixing the diluting solution and the stock solution, A first pump 130 for uniformly feeding the diluting liquid to the diluting coolant supply unit 200 by mixing the diluting liquid with the cutting stock solution at a predetermined pressure and a second pump 130 for feeding diluted cutting oil of the main body 110 to the diluting coolant supply unit 200, 140).

The apparatus for diluting cutting stock 100 further includes a cutting stock sensing unit 150 coupled to the stocking tank 103 for sensing the flow rate of the stocking solution.

The main body 110 includes a diluting liquid storage portion 111 and a diluted cutting oil storage portion 113 in which a diluting liquid and a diluting cutting oil are respectively stored and a first pump 130 and a second pump 140 are installed on the lower side And an installation space portion 115. FIG. The diluting liquid storage portion 111 and the diluted cutting oil storage portion 113 of the main body 110 are provided with a diluting liquid discharge valve 111a and a diluting coolant discharge valve 113a so as to discharge the diluted liquid and the diluted cutting oil, Respectively.

The dilution liquid storage unit 111 includes a first inlet pipe 111b connected to the tap water supply line 101 for storing the diluted liquid and a second inlet pipe 111b connected to the first pump 130 so that the stored diluted liquid is transferred to the fluid mixing unit 120. [ And a first discharge pipe 111c. At this time, the first inlet pipe 111b is connected to the first level control valve 111d to block the inflow of the diluent when the diluent is stored in the diluent reservoir 111 up to the set height. A ball-top valve may be used as the first level control valve 111d according to the present embodiment.

The diluted cutting oil storage part 113 includes a second intake pipe 113b connected to the fluid mixing unit 120 so that the diluted cutting oil is drawn in and a second pump 113b for feeding the diluted cutting oil stored therein to the diluted cutting oil supply part 200. [ And a second discharge pipe 113c connected to the discharge pipe 140. At this time, the second discharge pipe 113c is connected to the diluting coolant supply unit 200.

The main body 110 has a mounting space 115 at a lower portion thereof so that the first pump 130 and the second pump 140 can be installed therein. The first pump 130 sucks the diluent through the lower surface of the diluent storage part 111 and then transfers the diluted solution to the first discharge pipe 111c through the interior of the diluent storage part 111. [ To this end, the diluent storage part 111 is provided therein with a first internal connection pipe 111e for connecting the first pump 130 and the first discharge pipe 111c. The second pump 140 sucks the diluted cutting oil through the lower surface of the diluted cutting oil storage part 113 and then feeds the diluted cutting oil to the second discharge pipe 113c through the inside of the diluted cutting oil storage part 113. [ To this end, the diluted cutting oil storage part 113 is provided therein with a second internal connection pipe 113d for connecting the second pump 140 and the second discharge pipe 113c.

The main body 110 further includes a diluted cutting oil level sensor 116 for sensing the level of the diluted cutting oil stored in the diluted cutting oil storage part 113 and controlling the first pump 130 to be turned on and off. The diluted cutting oil level sensor 116 detects the level of the diluted cutting oil stored in the diluted cutting oil storage part 113 by being coupled to the upper surface of the diluted cutting oil storage part 113.

The automatic cutting system of the cutting oil according to the present embodiment is configured such that the raw stock of the raw stock in the raw stock tank 103 is mixed with the diluted raw stock at an accurate ratio and the amount of the raw fluids The mixing unit 120 and the stock solution sensing unit 150 are respectively coupled.

6 to 10, the fluid mixing unit 120 according to the present embodiment is configured such that the diluting liquid of the diluting liquid storing portion 111 is uniformly fed to the set pressure, And is connected to the first pump 130. The fluid mixing unit 120 is connected to the second inlet pipe 113b so that the diluted cutting oil mixed therein is transferred to the diluted cutting oil storage unit 113. [

The fluid mixing unit 120 includes a flange portion 121 coupled to the raw stock storing tank 103, an opening and closing portion 123 coupled to the flange portion 121, And a mixing portion 125.

The flange portion 121 is formed with a male screw portion on the outer surface thereof and is fastened to the discharge port of the stock tank 119.

The opening and closing part 123 includes a valve member 123a coupled to the flange part 121 and a fluid inflow member 123b inserted into the stock solution reservoir tank 103 to allow the stock solution to flow into the valve member 123a do. The valve member 123a is provided therein with a ball member 123a 'that opens and closes the flow passage while moving upward and downward due to the pressure difference of the fluid mixing portion 125. [ The fluid inflow member 123b is inserted into the stock reservoir tank 103 such that the fluid inflow member 123b is formed by a PVC pipe and the upper end thereof is engaged with the valve member 123a and the lower end thereof is brought close to the inner bottom of the stock reservoir tank 103.

The fluid mixing section 125 has a "T" shape and its lower end is coupled to the valve member 123a and both ends are connected to the first outlet pipe 111c and the second inlet pipe 113b, respectively. The diameter of the fluid mixing part 125 decreases as the diluent transfer path is moved toward the center so as to discharge the stock solution by the Bernoulli principle.

Further, as the length of the fluid mixing part 125 coupled to the valve member 123a is adjusted, the distance that the fluid mixing part 125 is separated from the ball member 123a 'is adjusted. For example, the fluid passage 125 of the valve member 123a is opened so that the separation distance between the lower end portion and the ball member 123a 'may be longer.

In addition, a grip portion 125a is protruded from the upper end portion of the fluid mixing portion 125 so as to easily adjust the opening degree of the transfer passage of the valve member 123a.

The cutting solution sensing unit 150 according to the present embodiment is coupled to the undiluted solution storage tank 103 and is coupled to the tank fixing part 151 and the tank fixing part 151, And an electrode rod 153 for detecting the undiluted solution. At this time, the main body 110 is provided with a blink indicator member 118 blinking according to the amount of the stock solution sensed by the cutting stock detector 150 and a control panel 117 for operating the stock indicator solution unit 150 Respectively.

Referring to FIGS. 1 and 11, in the automatic coolant supply system for cutting oil according to the present embodiment, the diluted cutting oil diluted in the undiluted slurry 100 is supplied to the machine tool 200 through the diluted cutting oil supply unit 200 and the cutting oil individual supply unit 300, As shown in FIG.

The dilution cutting oil supply unit 200 includes a main storage tank 210 for storing diluted cutting oil, a cutting oil sensing member 220 for sensing the amount of diluted cutting oil in the main storage tank 210, And a coolant transfer line 230 connected to the diluted coolant storage unit 113 to supply diluted coolant to the main storage tank 210.

The main storage tank 210 is installed at a higher position than the undiluted cutter 100 and the individual cutting oil supply part 300 and the diluted cutting oil stored therein is supplied to the individual cutting oil supplying part 300 by the potential energy.

The cutting oil sensing member 220 is installed in the main storage tank 210 and generates a driving signal to control the driving of the second pump 140 according to the level of the diluted cutting oil in the main storage tank 210. For example, the coolant sensing member 220 outputs a stop signal of the second pump 140 when the diluted coolant of the main storage tank 210 approaches the full water level, and the diluted coolant of the main storage tank 210 reaches the minimum level And outputs a driving signal of the second pump 140 when it is close.

The coolant transfer line 230 is connected to the main storage tank 210 at one end thereof so that the diluted coolant pumped by the second pump 140 is transferred and the other end is connected to the second internal connection pipe 213 of the diluted coolant storage section 113. [ (113d). The coolant transfer line 230 is provided with the check valve 231 to prevent the diluted cutting oil from flowing back to the second pump 140 side and the filter member 233 is provided to remove foreign substances from the diluted cutting oil.

The cutting oil individual supply unit 300 includes an auxiliary storage tank 310 provided corresponding to the quantity of the machine tool, a separate supply line 320 connecting the main storage tank 210 and the auxiliary storage tank 310, And a coolant cut-off valve 330 for selectively cutting off the supply of the diluting coolant supplied to the tank 310.

The auxiliary storage tank 310 is provided so as to be close to the machine tool, and the diluting coolant transferred through the individual supply line 320 is stored. In addition, the auxiliary storage tank 310 discharges the diluted cutting oil stored therein through a separate discharge line. The auxiliary storage tank 310 is installed at a lower position than the main storage tank 210.

The individual supply lines 320 are connected at one end to the main storage tank 210 and at the other end to branch to the auxiliary storage tanks 310, respectively.

The cutting oil shutoff valve 330 closes the individual supply line 320 when the dilution cutting oil stored in the auxiliary storage tank 310 is close to the full water level and cuts off the supply of the diluted cutting oil and supplies the dilution cutting oil to the auxiliary storage tank 310 are lowered, the individual supply lines 320 are opened. As the coolant cutoff valve 330 according to the present embodiment, a ball-top valve may be used.

Next, the operation of the automatic dilution coolant supply system according to one embodiment of the present invention will be described.

First, the tap water supply line 101 connected to the faucet is connected to the first inlet pipe 111b to supply tap water, which is a dilution liquid, to the diluent storage unit 111 of the main body 110. [ At this time, when the dilution liquid in the dilution liquid storage part 111 comes close to the maximum water level, the first water level control valve 111d operates and blocks the first intake pipe 111b. In accordance with the use of the dilution liquid, ) Is lowered, the first level control valve 111c is opened and the dilution liquid is supplied through the first inlet pipe 111b.

When the first pump 130 is driven, the diluting liquid in the diluting liquid storing portion 111 is fed to the diluting cutting oil storing portion 113 through the fluid mixing unit 120, which is coupled to the raw stock storing tank 103, . At this time, since the diluting liquid is constantly delivered to the set pressure by the first pump 130 at all times, the stock raw liquid and the diluting liquid are mixed in the fluid mixing unit 120 at the correct ratio and stored in the diluted cutting oil storage unit 113.

Thereafter, when the diluted cutting oil mixed and conveyed by the fluid mixing unit 120 approaches the full water level in the diluted cutting oil storage part 113, the diluted cutting oil level detection sensor 116 outputs a stop signal to the first pump 130 , Whereby the first pump 130 is stopped. When the level of the diluted cutting oil storage 113 approaches the minimum level due to the use of the diluted cutting oil, the diluted cutting oil level sensor 116 outputs a driving signal to the first pump 130, Lt; / RTI > This can prevent the supply of diluted cutting oil from being stopped.

When the second pump 140 is operated, the diluted cutting oil stored in the diluted cutting oil storage part 113 is transferred to the main storage tank 210 through the cutting oil transfer line 230. At this time, when the dilution cutting oil supplied to the main storage tank 210 approaches the full water level, the stop signal is outputted from the cutting oil sensing member 220 to the second pump 140. When the dilution cutting oil approaches the minimum water level, 220 to the second pump 140 and restarts the second pump 140 that has stopped.

In addition, the diluted cutting oil delivered to the cutting oil transfer line 230 through the second pump 140 is prevented from flowing backward by the check valve 231, and the foreign matter is removed through the filter member 233.

Then, the diluted cutting oil stored in the main storage tank 210 is transferred to the auxiliary storage tank 310 by the potential energy, stored and supplied to the respective machine tools.

Meanwhile, in the automatic cutting system of the cutting oil according to the present embodiment, the cutting stock sensing unit 150 coupled to the cutting stock reservoir tank 103 senses the flow rate of the stock stock solution of the cutting stock reservoir tank 103, The flickering display member 118 is selectively flickered. As a result, the operator can easily confirm that the stock solution in the stock solution storage tank 103 is completely emptied. Therefore, it is possible to prevent only the diluting solution from being supplied to the dilution cutting oil storage section 113.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the claims.

100: a stock solution diluting device 110:
111: Diluent storage part 113: Diluted cutting oil storage part
115: Installation space section 117: Control panel
116: Dilution coolant level sensor 118: Flickering indication member
120: fluid mixing unit 121: flange portion
123: opening and closing part 125: fluid mixing part
130: first pump 140: second pump
150: Cutting stock sensing unit 151: tank fixing unit
153: electrode rod 200: diluting coolant supply portion
210: Main storage tank 220: Coolant sensing member
230: Coolant transfer line 231: Non-return valve
233: Filter member 300: Individual supply of coolant
310: auxiliary storage tank 320: individual supply line
330: Coolant shutoff valve

Claims (4)

A diluter for diluting the stock solution, which is mixed with the diluting solution and the stock solution, and is accommodated in the diluted cutting oil storage part by transferring the diluting solution stored in the diluting solution storage part to the diluting cutting oil storage part; A diluting coolant supply unit for supplying and storing a diluting coolant from the diluent reducing raw material and discharging the diluted coolant according to use of the diluted coolant; And a cutting oil individual supply unit connected to the diluted cutting oil supply unit and provided at a position lower than the diluted cutting oil supply unit so that the diluted cutting oil stored in the diluted cutting oil supply unit is supplied by potential energy,
Wherein the apparatus for diluting the stock solution comprises: a main body having the diluent storage unit and the diluted cutting oil storage unit, respectively; A fluid mixing unit coupled to a stocking tank for storing the stock solution and mixing the diluted solution and the stock solution; A first pump provided in the main body for transferring the diluent in the diluent storage unit to the diluted coolant storage unit through the fluid mixing unit; And a second pump provided in the main body for feeding the diluted cutting oil in the diluted cutting oil storage part,
Wherein the diluted cutting oil supply unit includes: a main storage tank connected to the undiluted solution to be accommodated in the diluted cutting oil;
A coolant sensing member provided in the main storage tank for sensing a level of the diluted coolant; And
And a coolant transfer line connected to the main storage tank and the undiluted cutter and connected to the diluted coolant supply unit and having a check valve to prevent backflow while filtering foreign substances from the diluted coolant,
Wherein the individual cutting oil supply unit includes an auxiliary storage tank provided corresponding to a plurality of machine tools in which the diluted cutting oil is used to store the diluted cutting oil and installed at a lower position than the main storage tank;
An individual supply line connecting the auxiliary storage tank and the main storage tank; And
A coolant shutoff valve provided in the auxiliary storage tank for shutting off supply of the diluted coolant;
And an automatic dilution supply system for the coolant. 2. The apparatus according to claim 1,
A main body having the diluent storage unit and the diluted cutting oil storage unit, respectively;
A fluid mixing unit coupled to the cutting fluid storage tank for containing the cutting fluid, wherein the fluid mixing unit mixes the diluted fluid and the stockant;
A first pump provided in the main body for transferring the diluent in the diluent storage unit to the diluted coolant storage unit through the fluid mixing unit; And
A second pump provided in the main body for feeding the diluted cutting oil in the diluted cutting oil storage part;
And an automatic dilution supply system for the coolant. delete delete

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