KR101576418B1

KR101576418B1 - Cleaning device of washing water for machine tool

Info

Publication number: KR101576418B1
Application number: KR1020150050631A
Authority: KR
Inventors: 엄경미
Original assignee: 엄경미
Priority date: 2015-04-10
Filing date: 2015-04-10
Publication date: 2015-12-10
Also published as: WO2016163749A1

Abstract

The present invention relates to a washing water cleaning apparatus for a machine tool, and more particularly, to a washing water cleaning apparatus for a machine tool, which is capable of reusing purified washing water after removing impurities such as oil and sludge contained in washing water used for processing a machine tool such as a heat- The present invention relates to a washing water cleaning apparatus for a machine tool that can reduce waste water treatment costs and prevent contamination of workpieces due to accumulation of impurities,
An apparatus for cleaning a washing machine of a machine tool for reusing wash water by removing impurities contained in wash water for machine tool stored in a tank, the apparatus comprising: an upper roller connected to a drive shaft of a motor mounted on a motor box; A lower roller which is driven and connected to the upper roller and the lower roller, and rotates the lower roller by rotation of the upper roller, and is rotated up and down; An impurity removing unit disposed at one side of the belt to remove impurities adsorbed on the outside of the belt; A pump unit circulating and rotating the washing water in the tank, the pump unit comprising a suction pipe for sucking wash water in the tank, a pump connected to the suction pipe, and a discharge pipe connected to the pump; A micro-bubble generating device mounted on a discharge pipe of the pump unit; An upper frame on which the motor box and the impurity adsorption unit are mounted; And a lower frame on which the upper frame is mounted and to which the pump is fixedly mounted.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a washing water cleaning apparatus for a machine tool, and more particularly, to a washing water cleaning apparatus for a machine tool, which is capable of reusing purified washing water after removing impurities such as oil and sludge contained in washing water used for processing a machine tool such as a heat- To a cleaning water cleaning apparatus for a machine tool capable of reducing waste water treatment costs and preventing contamination of workpieces due to accumulation of impurities.

Generally, in a processing process using a machine tool such as a heat treatment machine or a polishing machine, a fluid (hereinafter referred to as " washing water ") such as washing water, polishing oil, and cutting oil is sprayed to cool, lubricate, Since the impurities such as oil and sludge are mixed with the washing water while the process is being performed, a cleaning water cleaning apparatus is required to effectively remove impurities and re-supply the washing water to the machine tool to reuse the washing water.

As a prior art related to such a washing water cleaning apparatus, the description of a belt oil skimmer configured to be able to reuse the coolant liquid by removing waste oil from the coolant liquid used in the cutting process is disclosed in Registration Utility Model No. 20-0249707 Is shown.

In the belt oil skimmer, the waste oil flowing into the storage tank is moved to a separation tank by using a belt, the waste oil is separated by the difference in specific gravity between the coolant and the waste oil, and the purified coolant is re- . The belt oil skimmer is configured to remove waste oil from waste oil suspended in a storage tank by separating the waste oil sucked on the belt by a scraper and transferring the waste oil to a separation tank. However, Since the waste oil contained in the coolant to be stored is simply applied to the surface due to the difference in specific gravity, there is a limit in collecting the impurities such as sludge including the waste oil contained in the coolant liquid rapidly, The collection efficiency of the relatively large sludge is low.

In another prior art related to the washing water cleaning device, the decontamination preventive treatment system of the water soluble cutting oil disclosed in the Japanese Patent Laid-Open No. 10-2013-0102385 includes a coolant storage tank for receiving and storing the water soluble cutting oil being used for metal working, A bubble generator for generating bubble water supplied from the bubble separator, and a bubble generator for generating bubble water supplied from the bubble separator, wherein the bubble generator comprises: Are shown.

However, in the bubble generator disclosed in the above-mentioned Japanese Patent Laid-Open No. 10-2013-0102385, in the process of passing the cutting oil pumped by the treatment liquid supply pump through the micro bubble generating tube configured to repeatedly increase and decrease the sectional area of the flow path, However, such a configuration is disadvantageous in that there is a limit to miniaturize minute bubbles in the order of several micrometers. Therefore, in the anti-decay treatment system of the water-soluble cutting oil, the flotation separation device and the coolant storage tank are separately formed, and fine bubbles are respectively supplied to the flotation separation device and the coolant storage tank to separate and remove the impurities and remove the impurities. Is collected in a clean oil storage tank provided at one side of the coolant storage tank, and then supplied again by a coolant supply pump. However, with such a configuration, the configuration of the system becomes complicated, the volume and weight of the system become large, the manufacturing cost increases, and the operation and maintenance of the system are not easy. Further, there is a problem that it is difficult to install and use in a conventional tank.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a washing machine cleaning apparatus for a machine tool which is applicable to a conventional tank and has a compact configuration.

It is another object of the present invention to provide a cleaning water cleaning apparatus for a machine tool which can reduce the manufacturing cost of the apparatus and simplify the operation and maintenance of the apparatus by simplifying the structure of the apparatus for removing and reusing impurities contained in the washing water of the machine tool .

In order to accomplish the above object, the present invention provides a cleaning water cleaning apparatus for machine tools, which removes impurities contained in cleaning water for machine tools stored in a tank to reuse cleaning water, A lower roller connected to the upper roller and connected to the drive shaft of the motor mounted on the lower roller, a lower roller connected to the upper roller, and a lower roller connected to the upper roller and the lower roller, An impurity adsorbing portion composed of a belt rotated up and down at the same time; An impurity removing unit disposed at one side of the belt to remove impurities adsorbed on the outside of the belt; A pump unit circulating and rotating the washing water in the tank, the pump unit comprising a suction pipe for sucking wash water in the tank, a pump connected to the suction pipe, and a discharge pipe connected to the pump; A micro-bubble generating device mounted on a discharge pipe of the pump unit; An upper frame on which the motor box and the impurity adsorption unit are mounted; And a lower frame on which the upper frame is mounted and to which the pump is fixedly mounted.

In addition, the present invention is characterized by further comprising a cantilever-type support bar mounted on the front of the upper frame and positioned inside the belt, a pair of wires connected to the support bar, and a ' And the lower roller is supported and rotated by the rotation shaft of the lower roller connected to the lower roller support.

The impurity removing portion of the present invention is characterized by comprising a scraper for scraping impurities adsorbed on the outside of the belt, a temporary impregnation storage container to which the scraper is mounted, and an impurity discharge pipe mounted on the end of the temporary storage container .

In addition, the upper frame of the present invention is formed of 'B' -shaped angles longer than vertical, and a reinforcing member is attached to the back of the upper frame.

In addition, the lower frame of the present invention is formed in a stepped shape, and the upper flat portion is fixed to the tank, and the pump is fixedly mounted on the lower flat portion.

Further, the micro-bubble generating device of the present invention is characterized in that a water activating device filled with a ceramic ball is further added.

The present invention is advantageous in that each component is arranged compactly so that it does not take up much space when applied to a tank, and is applicable to a conventional tank.

In addition, the present invention simplifies the configuration of the apparatus for removing and reusing impurities contained in the washing water of a machine tool, thereby reducing the manufacturing cost of the apparatus and simplifying the operation and maintenance of the apparatus.

In addition, since the washing water that has passed through the micro-bubble generating device is configured to be discharged through the water activating device with the ceramic ball, micro-bubbles are further promoted and the sterilizing and deodorizing effect of the washing water by the active action between the ceramic ball and the washing water Can be obtained.

1 is a perspective view of a washing water cleaning apparatus for a machine tool according to the present invention,
FIG. 2 is a side view of a washing water cleaning apparatus for a machine tool according to a first embodiment of the present invention, FIG.
3 is a plan view of the pump and micro-bubble generator,
4 is a perspective view of the lower roller supported,
5 is a perspective view of a lower frame,
6 is a cross-sectional view of the micro-bubble generator and the water active device,
7 is an operational state diagram of the micro-bubble generating device and the water activating device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a washing water cleaning apparatus for a machine tool according to the present invention, FIG. 2 is a side view of a washing water cleaning apparatus for a machine tool according to a first embodiment of the present invention, Fig. 5 is a perspective view of the lower frame, Fig. 6 is a cross-sectional view of the micro-bubble generating device and the water activating device, Fig. 7 is a cross-sectional view of the micro- Fig.

1 and 2, the washing machine cleaning apparatus for a machine tool according to the present invention comprises an impurity adsorbing portion 10 for adsorbing impurities such as waste oil and sludge, and an adsorbent for adsorbing waste oil or sludge from the impurities adsorbing portion 10 A pump 30 for generating fine bubbles in the washing water in the tank while circulating the washing water in the tank T and a fine bubble generating unit 30 connected to the pump 30 to generate fine bubbles An upper frame 60 on which the motor box 11 of the impurity adsorbing portion 10 is mounted and a lower frame 70 which supports the pump 30 in the lower portion of the upper frame 60 do.

1, the impurity adsorbing portion 10 includes an upper roller 14 connected to a driving shaft 13 of a motor 12 mounted on a motor box 11, and an upper roller 14 connected to the upper roller 14. [ And a belt 19 for connecting the upper roller 14 and the lower roller 15 to each other. The belt 19 may be formed of synthetic resin such as polyurethane or PVC or a thin steel plate, and the surface may be further provided with wool. The motor box 11 is fixed to the upper frame 60 fixedly mounted on the upper portion of the lower frame 70 mounted on the base plate 80 of the tank T. The motor box 11 is composed of a box body 11-1, an instrument panel 11-2 and a switch 11-3 for driving the motor. Is mounted. The driving shaft 13 of the motor 12 is connected to the upper roller 14 to drive the upper roller 14 at a constant speed and the lower roller 14 is rotated by the belt 19 as the upper roller 14 rotates. ) Rotate together. Impurities are adsorbed to the belt 19 as the belt 19 is rotated and impurities such as sludge are removed by the impurity removing unit 20 in accordance with the circulating driving of the belt 19. [

The lower roller 15 will be described in detail with reference to FIGS. 1 and 4. FIG. As shown in the figure, the lower roller 15 is not provided with a rotating shaft separately inside the tank, but drives the lower roller by applying a tensile force to the belt by the self-load of the roller. Thus, the lower roller 15 is made to have a load within the elastic range of the tensile force of the belt 19.

The lower roller 15 is composed of a roller body 15-1 having a circular fixing plate for preventing the belt from being pulled out to both sides and a rotary shaft 15-2 formed inside the roller body 15-1 do.

The lower roller 15 has a cantilever-like support (not shown) fixed to the upper frame 60 in order to prevent the lower roller from being locked in the tank when the belt is damaged by tearing or the like, And is connected to the bar 18 by a wire 17. Specifically, a lower roller support 16 of the "┓" type connected to the rotary shaft 15-2 of the lower roller 15 is fixed by using a joint member, and a wire (not shown) is fixed on the lower roller support 16, So that the lower roller 15 can be supported.

1 and 2, the impregnable material removing unit 20 includes a scraper 22 for removing waste oil or sludge from the outside of the belt as the belt 19 descends, a scraper 22 A temporary storage container 21 for temporarily collecting waste oil or sludge removed through the pipe 21 and an impurity discharge pipe 23 connected to one end of the temporary storage container 21 and allowed to discharge to the outside. A flexible hose or the like may be connected to the impurity discharge pipe 23 or connected to a separate storage container to remove waste oil or sludge. The impurity removing unit 20 is fixedly mounted on the upper frame 60. And is fixed to the upper frame 60 by a method such as welding or bolts. That is, the end of the temporary storage container 21 to which the impurity discharge pipe 23 is connected is extended to the upper frame side and fixed to the upper frame 60.

1 to 3, the pump unit 30 includes a suction pipe 31 for circulating washing water in the tank T, a pump 32 to which the suction pipe 31 is connected, a pump 32, And a discharge pipe (33) connected to the discharge pipe and discharging wash water. The pump 32 is fixedly mounted on the lower frame 70.

The micro bubble generator (40) is mounted on the discharge pipe (33) of the pump unit (30). Air is sucked, and the air is again blown through the micro-bubble generator, so that impurities such as waste oil and sludge float together. A water activating device (50) may be further added to the front end of the microbubble generator (40).

The upper frame 60 is as shown in Fig. As shown in the figure, the upper frame 60 is made of an 'B' -shaped angle in which the upper frame body 61 is longer than the vertical. A bolt hole 63 for fixing the motor box 11 is provided on the upper portion of the main body 61. A bolt hole 64 for fixing the lower flat portion of the main body 61 of the angle to the lower frame 70 is provided and a reinforcing member 62 for enhancing the strength of the upper frame 60 is attached to the back side. A bolt 65 is mounted on the bolt hole 64 and fixed to the lower frame 70. Although not shown in FIG. 4, one end of the temporary storage container 21 of the impurity removing unit 20 is extended and fixed to the upper frame 60 by welding or bolt, as shown in FIG.

Fig. 5 is a view of the lower frame 70. Fig. As shown in the figure, the lower frame 70 is formed in a stepped shape. The upper flat surface portion 71 of the lower frame 70 is provided with a bolt hole 72 so as to be fixed to the base plate 80 of the tank. A pump 32 is fixedly mounted on the lower flat surface portion 73 and a vertical portion of the lower frame 70 is held in close contact with the side surface of the tank T. [ Therefore, the side surface of the tank T supports the load of the pump 32 mounted on the lower flat surface portion 73. A bracket 75 is provided on both sides so as to receive the load of the pump 32 mounted on the lower flat surface portion 73. Bolts 75 are provided on the lower flat surface portion 73 to fix the pump 32, A hole 74 may be provided.

6 and 7, the micro-bubble generating device 40 is mounted on the end of the discharge pipe 33 in the tank T, and the air supply pipe 410 is connected to the washing water flowing through the pump part 30, Thereby supplying a large amount of microbubbles into the washing water.

6 and 7, the water activating device 50 is connected to the discharge side of the microbubble generator 40, and includes a housing 51 having a plurality of through holes 52 formed therein, And a plurality of ceramic balls 53 housed in the housing 51. The minute bubbles generated by passing through the micro bubble generator (40) collide with each other in the process of passing between the ceramic balls (53) provided in the water activator (50) Further, the ceramic ball 53 reacts with the washing water to generate an activating action, so that the sterilizing and deodorizing effect of the washing water can be obtained.

The microbubbles are supplied from the microbubble generator 40 and the water activator 50 provided in the tank T to the tank T and collide with and adhere to the impurities contained in the washing water in the course of floating microbubbles Since the specific gravity of the impurities is lowered, the impurities attached to the fine bubbles float on the surface of the washing water and flocculate in a flocculated state.

The micro-bubble generating device 40 shown in Figs. 6 and 7 includes an inflow section 100 through which circulating wash water with inflow of wash water and mixed with micro-bubbles is circulated, A discharge unit 300 connected to the rear of the micro-bubble generator 200 and discharging wash water including micro-bubbles, a micro-bubble generator 200 for generating micro- A gas supply unit 400 for supplying gas to the washing water passing through the fine bubble generator 200 and a part of washing water passing through the discharge side of the fine bubble generator 200 toward the inlet 100 And a circulating fluid circulating unit 500.

The cleaning water flowing through the inflow section 100 passes through the minute bubble generating section 200 and collides with the gas supplied from the gas supply section 400 and injected, In this process, minute bubbles are generated, and a part of the washing water including minute bubbles generated by passing through the minute bubbler 200 is discharged through the discharging unit 300, and the remaining washing water flows through the fluid circulating pipe 500 And the efficiency of generation of fine bubbles can be improved while passing through the fine bubble generator 200 again.

The inlet portion 100 is formed of a cylindrical body portion 110 whose inside is opened in the longitudinal direction and an inlet port through which a second circulation pipe 33 to which washing water is supplied is connected to the tip of the body portion 110 And an outlet 130 through which the fluid containing the washing water and the minute bubbles is discharged toward the minute bubbler 200 is formed at the rear end of the body part 110.

In one embodiment, the body 110 has four fluid circulation outlets 140 passing through the inner circumferential surface of the outer circumferential surface at equal intervals along the circumferential direction. The fluid circulation outlet 140 functions to provide a flow path for injecting the fluid circulating and supplied through the fluid circulating unit 500 into the inlet 100. The fluid circulating outlet 140 is disposed at a center axis C along the discharge direction of the fluid, And is inclined at a predetermined angle with respect to the tangential direction as well. Therefore, the mixed fluid of the washing water and the gas injected through the fluid circulation outlet 140 collides with the washing water flowing through the inflow part 100, so that the gas contained in the washing water is crushed to promote the generation of the minute bubbles have.

The inner diameter d2 of the body portion 110 where the outlet 130 is located is smaller than the inner diameter d1 of the body portion 110 in the region from the rear of the inlet 120 to the front end of the outlet 130 As compared with that of the conventional art. Therefore, at the outlet 130 formed to have a relatively large inner diameter d2, the washing water flowing through the inlet port 120 and the mixed fluid of the washing water and the gas sprayed through the fluid circulation outlet 140 are mixed and mixed And is supplied to the micro-bubble generating unit 200 after the micro bubbles are refined.

The fine bubble generator 200 includes outer guide members 210, 220 and 230 and inner guide members 240, 250 and 260 spaced radially inwardly.

The outer guide members 210, 220 and 230 include a first outer guide member 210 connected to the rear of the inlet 100 and having a gas inlet hole 213 through which the gas supplied from the gas supply unit 400 flows, A second outer guide member 220 connected to the rear of the first outer guide member 210 and a second outer guide member 220 connected between the second outer guide member 220 and the discharge unit 300, And a third outer guide member 230 having a fluid circulation inlet 233 through which the fluid passing through the discharge side of the fluid circulation unit 500 flows into the fluid circulation unit 500.

The inner guide members 240, 250 and 260 may include a first inner guide member 240 having a plurality of fluid discharge holes 242 spaced from each other in the circumferential direction and a second inner guide member 240 having a larger inner diameter d2 than the inner diameter d2 of the first inner guide member 240. [ A second inner guide member 250 having an inner diameter d3 and a plurality of fluid inflow holes 253 spaced in the circumferential direction and a third inner guide member 250 having an inner diameter d3 equal to that of the second inner guide member 250, And an inner guide member 260.

A plurality of vortex forming protrusions 252 and 262 protruding toward the central axis C are formed at predetermined intervals along the circumferential direction at the inner peripheral surface rear end portions of the second inner guide member 250 and the third inner guide member 260 Respectively.

The vortex forming protrusions 252 and 262 formed in the second inner guide member 250 and the third inner guide member 260 induce vortical flow and turbulence by inducing the flow of the fluid to change in the radial direction, Function.

A first inner guide member 240, a second inner guide member 250, and two third inner guide members 260 are sequentially connected to the inner side of the first outer guide member 210. The first inner guide member 240, the third inner guide member 260, the second inner guide member 250, and the third inner guide member 260 are provided on the inner side of the second outer guide member 220 And are sequentially connected. A first inner guide member 240 and three second inner guide members 250 are sequentially connected to the inside of the third outer guide member 230. And between the first to third outer guide members 210, 220 and 230 and the first to third inner guide members 240, 250 and 260 by welding.

When the inner guide members 240, 250 and 260 are coupled to the inner sides of the outer guide members 210, 220 and 230, a first space S1 provided inside the first outer guide member 210 outside the inner guide members 240, 250 and 260, The second space S2 provided on the inner side of the second outer guide member 220 and the third space S3 provided on the inner side of the third outer guide member 230, And are spaced apart from each other by protrusions formed at the tip ends of the guide members 210, 220, and 230.

The discharge unit 300 includes a cylindrical body 310 having an interior opened in the longitudinal direction and an inlet through which the fluid that has passed through the microbubble generator 200 flows And a discharge port 312 through which a fluid including minute bubbles is discharged is formed at a rear end of the body part 310. [ A tapered portion 313 is formed on the inner circumferential surface of the body portion 310 to gradually increase the inner diameter along the discharge direction of the fluid. Accordingly, the flow resistance of the fluid discharged through the discharge part 300 can be prevented, and the fluid can be discharged at a high pressure.

The gas supply unit 400 is connected to a gas supply pipe 410 around a gas inflow hole 213 formed at the upper end of the first outer guide member 210. A gas supply pipe 410 is connected to the upper end of the gas supply pipe 410, (411) is formed through the through hole.

The gas supply port 411 is thermally connected to a gas supply pipe 410 opened in the atmosphere. Since a negative pressure lower than the atmospheric pressure is applied to the inner channel of the inner guide members 240, 250 and 260 of the fine bubble generator 200 when the fluid flows, even if the gas supply port 411 is installed in the open state, The gas can be introduced into the channel of the microbubble generator 200 through the gas supply port 411, the gas inflow hole 213 and the fluid discharge hole 242 by a pressure difference, Reverse flow of the fluid is prevented by the pressure difference.

The fluid circulating part 500 includes a fluid circulating pipe 510 and a first connection part connecting one end of the fluid circulating pipe 510 and the fluid circulating inflow hole 233 formed in the third outside guide member 230, And a second connection pipe 530 connecting the other end of the fluid circulation pipe 510 and the fluid circulation outlet 140 formed in the inflow part 100.

The fluid circulating unit 500 may include a plurality of fluid circulating units 500 spaced apart from the inflow unit 100 at a predetermined interval around the outer periphery of the fine bubble generating unit 200. In one embodiment, And can be provided at four places in intervals. In this case, the fluid circulation inlet 233 and the fluid circulation outlet 140 are connected to the first connection pipe 520 and the second connection pipe 530 of the fluid circulation unit 500, .

Hereinafter, the operation of the fine bubble generator 40 constructed as above will be described.

The washing water flowing into the inflow portion 100 passes through the flow path inside the body portion 110 and the flow path inside the inner guide members 240, 250 and 260 of the fine bubble generating portion 200 and the flow path inside the discharge portion 300 . The washing water flowing into the inflow part 100 collides with the gas supplied from the gas supplying part 400 in the course of passing through the minute bubble generating part 200 and the bubble is broken by the impact to generate fine bubbles do.

In this case, since the inner diameter d3 of the second inner guide member 250 located at the rear portion of the fine bubble generator 200 is formed to be larger than the inner diameter d1 of the inflow portion 100, A pressure difference P2-P1 is generated between the pressure P2 of the fluid passing through the second inner guide member 250 and the pressure P1 of the fluid passing through the inlet 100. [ That is, since the pressure of the fluid flowing along the inside of the channel is proportional to the size of the cross-sectional area thereof, the pressure P2 at the tail end of the fine bubble generator 200 is larger than the pressure P1 of the inlet 100 .

According to the pressure difference, a part of the washing water including fine bubbles passing through the tail of the fine bubble generator 200 is discharged through the discharge part 300 and the remaining washing water is discharged to the second inner guide member 250 The fluid is drawn into the fluid circulation pipe 510 through the formed fluid inflow hole 253, the fluid circulation inflow hole 233 formed in the third outer side guide member 230 and the first connection pipe 520, The washing water flowing into the fluid circulation pipe 510 is circulated through the second connection pipe 530 and the fluid circulation outlet 140 to the inside of the inlet 100. Therefore, the minute bubbles that have passed through the fine bubble generator 200 are circulated through the fluid circulating unit 500 to the inflow unit 100 and can be further refined while passing through the fine bubble generator 200 again. have.

The first inner guide member 240, the second inner guide member 250, and the two third inner guide members 250 are formed in the front portion of the microbubble generator 200 inside the first outer guide member 210, Since the inner diameter d3 of the second inner guide member 250 is formed to be larger than the inner diameter d2 of the first inner guide member 240, (P3-P4) between the pressure P3 inside the first inner guide member 250 and the pressure P4 inside the first inner guide member 240, a part of the fluid passing through the inside of the second inner guide member 250 Is introduced into the first space S1 through the fluid inflow hole 253 formed in the second inner guide member 250 and mixed with the gas introduced from the gas supply part 400 to be introduced into the first inner guide member 240 And is circulated through the formed fluid discharge hole 242.

The first inner guide member 240, the third inner guide member 260, the second inner guide member 250, and the second inner guide member 250 are formed in the middle portion of the fine bubble generator 200 in the second outer guide member 220, And the third inner guide member 260 are sequentially connected in the fluid discharge direction and the inner diameter d3 of the second inner guide member 250 is larger than the inner diameter d3 of the first inner guide member 240 the pressure difference P4-P3 between the pressure P3 inside the second inside guide member 250 and the pressure P4 inside the first inside guide member 240 causes the second inner guide member 250 A part of the washing water passing through the inside of the member 250 flows into the second space S2 through the fluid inflow hole 253 formed in the second inside guide member 250 and is then formed in the first inside guide member 240 And has a circulation structure that is discharged through the fluid discharge hole 242.

The first inner guide member 240 and the three second inner guide members 250 are arranged in the rear of the fine bubble generator 200 in the direction of the fluid discharge And the pressure difference P3-P4 due to the difference between the inner diameter d3 of the second inner guide member 250 and the inner diameter d2 of the first inner guide member 240, A part of the washing water passing through the inside of the guide member 250 flows into the third space S3 through the fluid inflow hole 253 formed in the second inside guide member 250 and flows into the third space S3 And the remaining wash water is discharged through the fluid discharge hole 242 formed in the first inner guide member 240. The fluid is discharged through the fluid discharge hole 242 formed in the first inner guide member 240. [

As described above, the fluid passing through the internal flow path of the fine bubble generator 200 is circulated and supplied via the fluid circulating unit 500 by the pressure difference, and the first to third spaces S1, S2, The length of the passage through which the washing water passes can be made long on the pipe having a limited volume and the angle of spray of the bubbles and the washing water can be formed in various directions and the second inner guide member 250 Vortex and turbulence generation is promoted by the vortex forming protrusions 252 and 262 formed in the third inner guide member 260, so that the bubbles contained in the washing water can be miniaturized up to several micrometers.

The washing water containing the minute bubbles that have passed through the microbubble generator 40 is further refined in the process of passing through the water activating device 50 in which the plurality of ceramic balls 53 are embedded as described above, And the sterilization and deodorization of the washing water are performed by the action.

In the present specification, the cleaning device has been described as an example of the cleaning water. However, it is needless to say that the cleaning fluid of the present invention can be applied to the purification of various fluids including the polishing fluid used in the processing using the machine tool in addition to the cleaning water.

10: impurity adsorption part 11: motor box
12: motor 13: drive shaft
14: upper roller 15: lower roller
16: lower roller support 17: wire
18: support bar 19: belt
20: impurity removing unit 21: temporarily storing container
22: Scrapper 23: Impurity drain pipe
30: pump unit 31: suction pipe
32: pump 33: discharge pipe
40: Micro bubble generator
50: water active device 51: housing
52: through hole 53: ceramic ball
60: upper frame 61: 'b' -shaped angle body
62: reinforcing member 63, 64: bolt hole
65, 66: Bolt
70: lower frame 71: upper plane portion
72, 74: Bolt hole 73: Lower end plane portion
75: Bracket 76: Bolt
80: base plate
100: inlet part 110: body part
120: inlet 130: outlet
140: Fluid circulation outlet
200: minute bubble generator 210: first outer guide member
213: gas inlet hole 220: second outside guide member
230: Third outside guide member 233: Fluid circulation inflow hole
240: first inner guide member 242: fluid discharge hole
250: second inner guide member 253: fluid inflow hole
260: third inner guide member 262: vortex forming projection
300: discharging part 400: gas supplying part
410: gas supply pipe 411: gas supply port
500: fluid circulation part 510: fluid circulation tube
520: first connection pipe 530: second connection pipe
C:

Claims

1. A washing water cleaning apparatus for a machine tool for removing impurities contained in washing water for machine tools stored in a tank to reuse washing water,
An upper roller connected to a driving shaft of a motor mounted on a motor box, a lower roller connected to the upper roller and driven together, and a lower roller connected to the upper roller and the lower roller, An impurity adsorbing portion composed of a belt rotated upside and downside;
An impurity removing unit disposed at one side of the belt to remove impurities adsorbed on the outside of the belt;
A pump unit circulating and rotating the washing water in the tank, the pump unit comprising a suction pipe for sucking wash water in the tank, a pump connected to the suction pipe, and a discharge pipe connected to the pump;
A micro-bubble generating device mounted on a discharge pipe of the pump unit;
An upper frame on which the motor box and the impurity adsorption unit are mounted; And
The upper frame is mounted on the upper part and the lower frame on which the pump is fixedly mounted,
The microbubble generator may further comprise:
A micro bubble generating unit for generating micro bubbles by blowing gas onto the washing water flowing through the inflow unit and flowing through the inflow unit, A gas supply unit connected to the rear end of the micro bubble generator for discharging wash water containing micro bubbles, a gas supply unit for supplying gas to the wash water passing through the micro bubble generator, and a part of the wash water passing through the discharge side of the micro bubble generator, And a fluid circulating unit for circulating the cleaning fluid to the outside of the cleaning unit.

The method according to claim 1,
Further comprising a cantilever type support bar mounted on the front of the upper frame and positioned inside the belt, a pair of wires connected to the support bar, and a 'lower' shaped lower roller support connected to the wire,
Wherein the rotary shaft of the lower roller is connected to the lower roller support body to support and rotate the lower roller.

The method according to claim 1,
Wherein the impurity removing portion comprises a scraper for scraping impurities adsorbed on the outside of the belt, a temporary impurity temporary storage container to which the scraper is mounted, and an impurity discharge pipe mounted on an end of the temporary storage container Machine wash water cleaning device.

The method according to claim 1,
Wherein the upper frame is formed of an '?' -Shaped angle whose length is longer than a width, and a reinforcing member is attached to a rear surface of the upper frame.

The method according to claim 1,
Wherein the lower frame is formed in a stepped shape, the upper flat portion is fixed to the tank, and the pump is fixedly mounted on the lower flat portion.

The method according to claim 1,
Wherein the micro-bubble generating device further includes a water activation device filled with a ceramic ball.