KR20180037471A - The cutting oil filter for the chip discharge apparatus - Google Patents

Abstract

The present invention relates to a cutting oil filter device for a chip exhaust device. More specifically, the present invention relates to a cutting oil filter device for a chip exhaust device, which is for discharging cutting oil and cutting chips generated in a cutting process of a workpiece by using a screw and for discharging fine cutting chips and cutting oil through a separate discharge means to recycle the cutting oil. According to an embodiment of the present invention, the cutting oil filter device for a chip exhaust device comprises: a pump which sucks cutting oil containing a fine cutting chip from one side and discharges the cutting oil to the other side; a first filter box which includes a fine mesh net surrounding the bottom surface and the side surface on a rectangular box shaped framework which filters the cutting oil discharged by the pump; a second filter box which includes a fine mesh net surrounding the bottom surface and the side surface on a rectangular box shaped framework which secondarily filters the cutting oil passed through the first filter box; and a rectangular box shaped housing which accommodates the first and second filter boxes in a laminated state and recyclably stores the cutting oil filtered from the second filter box to be recovered through the return pipe. In addition, when the cutting oil discharged by the pump flows from the top to the bottom, the laminated first and second filter boxes pass through the first filter box and the second filter box to separate and filter the fine cutting chips.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cutting oil filter device for a chip discharging device,

The present invention relates to a cutting oil filter apparatus for a chip discharging apparatus, and more particularly, to a cutting apparatus for a cutting apparatus, which is capable of easily discharging cutting oil and cutting chips generated by a cutting process of a workpiece using a screw, The present invention relates to a cutting oil filter device for a chip discharging device for discharging cutting chips and cutting oil through separate discharge means.

Generally, a machine tool for cutting machining such as a lathe, a milling machine, a boring machine, a drilling machine, a planing machine, a slotting machine, a grinding machine, Cutting, drilling, drilling, thread cutting, grinding and the like by using cutting tools such as a cutting tool,

When machining metal cuttings using such a machine tool for various cutting operations, the frictional heat generated by the metal cutting tool and the cutting tool is cooled, and cutting oil is supplied for precise machining of the metal cutting tool and lifetime of the cutting tool .

In this way, the cutting oil supplied during the operation of the machine tool for cutting is dropped into a receptacle provided separately on the lower side of the machine tool together with cutting chips that are necessarily generated when cutting the metal cuttings.

In addition, the cutting oil dropped to the receptacle is supplied to the metal cutting tool and the cutting tool side via the circulating device in a state that the cutting chip and the foreign substance are filtered, and the cutting chip dropped into the receptacle is discharged manually, It is automatically discharged using the discharging means.

Here, the cutting oil dropped into the receptacle is supplied to the cutting machine through the circulating device in a state in which the cutting chips and the foreign substances are fed in the filtered state. In the process of feeding the cutting chips and the foreign substances to the cutting machine, There is a problem in that it can not be completely filtered and is re-supplied to the cutting machine.

On the other hand, when discharging cutting chips by using a discharging means such as an automated conveyor, an endless track type conveyor is installed from the inside of the machine tool and extends to a position far from the machine tool to completely discharge the cutting chip to the outside The installation area of the machine tool itself and the installation area of the conveyor are additionally required.

Since the collected chips are discharged without pressure, the chips are dropped and loaded on the container and discharged as they are inflated.

In other words, a small volume is formed and discharged through a compression process using a separate press or the like in order to process a chip that has fallen and loaded into a collection bin and is bulky, there was.

As a conventional technique for solving such a conventional problem, a 'chip discharging device for a machine tool' disclosed in Korean Utility Model Registration Registration No. 20-0327636 (September 15, 2003) of the Korean Intellectual Property Office has been proposed.

FIG. 1 is a perspective view showing a conventional assembling state of a chip discharging device for a machine tool, wherein a conventional chip discharging device for a machine tool comprises: A case 10 of a cube having opposing sloping faces 11; A chain box (13) provided at one side of the case (10) to protect the chain wheel (23); A discharge pipe (12) coupled to the outside of the other side of the case (10) at an upward inclination; (14) formed at the lower end of one side of the case (10) and formed with an opening (15) allowing the chip to be collected, and a plurality of discharge holes (16) formed in the lower end surface of the semicircular shape ,

A swaging screw (26) having a fixing projection (27) formed therein and installed inside the transfer tube (14); And a shaft rod 22 to which a chain wheel 23 is coupled at a tip end and which is installed on the bottom surface of the inclined surface 11 of the other case 10 of the conveyance pipe 14. The power of the motor 20 is transmitted to the coupler 21, The chip 26 is transferred by the chain wheel 23 coupled to the shaft 22 and the tip of the screw 26 to drive the screw 26 through the discharge tube 12, .

In the conventional chip discharging device for machine tool, the cutting chip discharged to the front end of the discharge pipe 12 is compressed to a certain degree by the screw 26 to discharge a small volume, thereby ensuring ease of handling, Particularly, the cutting oil falling at the same time as the chip is collected in the transfer tube (14) of the case (10) together with the chip, collected in the reservoir through the discharge hole (16), and can be reused after performing a proper filtering process.

As another conventional technique for discharging cutting chips generated during cutting of metal cuts, a 'chip conveying conveyor using a coil' of Korean Patent Registration No. 10-0572857 (Apr. 14, 2006) has been proposed .

FIG. 2 is a plan sectional view showing a conventional chip conveying conveyor using a coil. In the conventional chip conveying conveyor using a coil, a chip conveying conveyor for conveying chips and coolant generated during the cutting operation of the machine tool, A chip conveying conveyor incorporating a conveying means and discharging chips by rotating a coil (12), wherein a discharge pipe (22) provided at one end of the coil housing (10) is rotatably coupled to the coil housing The inclination angle of the coil housing 10 with respect to the axial center of the coil housing 10 can be selectively set in either one of the left and right directions and the inclination of the inclined chip guide plate (not shown) provided on both sides of the inlet 11 of the coil housing 10 20 and the coil housing 10 are formed with a plurality of drain holes 21 through which coolant can be discharged.

The chip conveying conveyor using such a conventional coil 12 is not limited to the shape of the chip in discharging various types of chips discharged from the machine tool, In addition, since the external size of the device is small, the chip conveyor can be installed in a limited space, and the configuration is simple and low cost.

However, a conventional chip discharging device for a machine tool (hereinafter referred to as Document 1) and a chip conveying conveyor using a coil (hereinafter referred to as Document 2) have the following problems.

First, in the chip discharging device for a machine tool according to Document 1, an opening 15 for collecting cutting oil and cutting chips falling from the machine tool is formed, and the cutting oil dropped from the machine tool is discharged to the lower end face of the semicircular shape The cutting chip is caused to discharge the discharge tube 12 through the transfer tube 4 and the cutting oil is discharged to the discharge hole 16 through the discharge hole 16. [ So that it falls into the storage tank.

At this time, fine chips in the form of pellets of small size among the chips transferred to the discharge pipe 12 side by the screw 26 are inserted into the discharge holes 16 formed on the lower end face of the semicircular shape of the transfer pipe 4, There is a problem that the cutting oil rises over the inclined surface 11 and flows over the case 10 or is discharged to the discharge pipe 12 together with the cutting chip.

On the other hand, in the chip conveying conveyor using the coil of the document 2, the feed port 11 is formed so that the cutting chip and the cutting oil (coolant) can fall down, A plurality of drain holes (21) are drilled in the lower portion of the chip guide plate (20) and the coil housing (10) to allow the coolant to be transferred to the reservoir.

At this time, a fine chip-shaped fine chip, which is small in size among the chips that have fallen into the inlet 11, is inserted into the drain hole 21 formed in the lower part of the coil housing 10 and the coolant is not smoothly discharged to the storage passage, There is a problem in that the chip guide plate 20 rubs over the coil housing 10 or is discharged through the discharge pipe 22 together with the chip.

As described above, the conventional chip discharging device for a machine tool and the chip conveying conveyor using a coil are configured to discharge the coolant to the coolant discharging passage 16 such as the discharge hole 16 or the drain hole 21 by a small- The discharge of cutting oil can not be smoothly carried out, and it may flow over to the outside, causing a malfunction of the equipment or deteriorating the cleanliness of the inside of the workplace.

Therefore, when the predetermined working time has elapsed, there has been a problem that the operation of the chip discharging device is stopped, the chip removing device such as a screw is disassembled, and the removing operation of the chip interrupted in the cutting oil discharging passage is periodically repeated .

As described above, in the conventional chip discharging apparatus, the discharge passage for the cutting oil such as the discharge hole 16 and the drain hole 21 is formed on the lower end surface of the conveyance pipe 14 having a semicircular shape, Which is formed on the lower side of the discharge port 10, the discharge channel is clogged by fine chips falling down with the cutting oil and sinking to the lower part.

Accordingly, in order to solve such a problem, a 'chip ejecting apparatus for a machine tool' of Patent Registration No. 10-1470787 (Apr. 24, 2014) (Document 3) has been proposed.

In Document 3, as shown in FIG. 3, a cutting chip falling from a machine tool is transported and compressed by using a feed screw 201 and discharged through a discharge pipe 300, and cutting oil dropped from the machine tool is cut A handle 502 is coupled to a front surface of the outlet pipe 400 and a top surface of the outlet pipe 400 is opened at both sides of an outlet pipe 400 disposed at a central portion of the outlet space 105, And the rear surface and the left and right side surfaces are formed of the net body 501 and are respectively capable of being drawn out into the outflow space portion 105 through the insertion hole 106 formed on both sides of the front plate 01 of the main body 100 A pair of collecting baskets 500 to be combined are disposed so that the coolant flows out through a plurality of outflow holes 401 and 402 formed around the outer surface of the outflow pipe 400, And discharged to the lower portion of the main body 100 So that chips and foreign matter of finer size included in the cutting oil can be collected by the net 501 of the collection box 500. [

Reference 3 discloses a method in which a fine cutting chip collected by a collection box 500 and a handle 502 coupled to a front surface of a collection box 500 are pulled out when a foreign substance is discharged, After the pick-up box 500 is simply pulled out from the upper surface of the support plate 107, fine chips and foreign substances are discharged to a separate chip sink, not shown. When the empty pick- Is inserted into the insertion hole 106 formed in the front plate 101 of the main body 100 so that the circumferential surface of the net 501 is supported on the support rail 108 provided on both sides below the outflow space portion 105 of the main body 100 Respectively, so that the collecting box 500 is mounted.

However, when machining metal cuttings by using various machine tools for cutting, cooling oil is supplied to cool the frictional heat generated by metal cutting tools and cutting tools, and to improve the precision of metal cutting and the life of cutting tools. It is significant.

Accordingly, the cutting oil supplied during the operation of the machine tool for cutting is removed and recycled in the process of discharging along with the cutting chip, which is necessarily generated when cutting the metal cuttings.

As described above, in Document 3, the cutting chips collected by the collection box 500 and the cutting oil are collected and recycled in the course of discharging the foreign substances. However, there is still a problem in completely removing minute chips and foreign matter, It is necessary to empty the collection box 500 into the collection box and re-install the collection box 500. [

Accordingly, there is a desperate need for a separate device capable of efficiently removing fine chips and foreign matter from the chip discharging device and collecting the coolant, not only through the collecting box 500 of Document 3, but also by a general chip discharging device.

(Document 1) Registered Utility Model Registration No. 20-0327636 (Sep. 15, 2003) 'Chip ejecting device for machine tool' (Document 2) "Chip conveying conveyor using coil" in Registration No. 10-0572857 (Apr. 14, 2006) (Document 3) 'Cutting chip ejecting device for machine tool' of Registration No. 10-1470787 (Apr. 20, 2014)

The present invention provides a coolant filter device for a chip discharge device, which is mounted on one side of a chip discharging device for general machine tools and sucks and separates fine chips and foreign substances There is a purpose.

According to an aspect of the present invention, there is provided a coolant filter apparatus for a chip discharge apparatus, comprising: a pump for sucking a coolant containing fine chips from one side and discharging the coolant to the other side; A first filter box provided with a fine mesh net surrounding a bottom surface and a side surface of a rectangular box-shaped skins to be filtered, a rectangular box-shaped skeleton filtering the coolant passed through the first filter box, A second filter box having a mesh net enclosing the first filter box, a first filter box, and a second filter box, the filter box being housed in the second filter box for recycling, .

In addition, when the cutting oil discharged by the pump flows downward, the fine filter chips are separated and filtered while passing through the first filter box and the second filter box.

According to the present invention, the cutting chips falling from the machine tool during the cutting process of the metal cuttings are discharged to the outside through the discharging device, and the cutting oil containing the fine chips and the foreign substances is separated from the chip discharging device There is an advantage that a minute chip and a foreign substance can be filtered through a double filter.

In addition, there is an advantage that it can be doubly filtered and recycled as a cleaner cutting oil than the conventional one.

Further, there is an advantage that the maintenance work according to the separate filtration apparatus can be performed more easily and quickly than before.

1 is a perspective view showing a state of assembling a conventional chip discharging device for a machine tool.
2 is a plan sectional view showing a chip conveying conveyor using a conventional coil.
3 is a perspective view of a cutting chip discharging device for a machine tool according to an embodiment of the present invention.
4 is a perspective view of a filter device for chip discharge according to an embodiment of the present invention;
Fig. 5 is an exemplary photograph taken with the front part of Fig. 4 opened. Fig.
Fig. 6 is an exemplary photograph taken with the rear part of Fig. 4 opened. Fig.
Fig. 7 is an exemplary photograph of the filter box of Fig. 4 taken. Fig.
FIG. 8 is an exemplary photograph taken by taking out a part of the rear surface of FIG. 4; FIG.
9 is a perspective view of a coolant filter device for a chip discharge device further comprising a chip discharge device according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified, and that other specific features, regions, integers, steps, operations, elements, components, and / And the like.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

The embodiments of the present invention described with reference to the drawings specifically illustrate an ideal embodiment of the present invention. As a result, various variations of the illustration, for example variations in the manufacturing method and / or specification, are expected. Thus, the embodiment is not limited to any particular form of the depicted area, but includes modifications of the form, for example, by manufacture. The regions shown or described as being flat may have characteristics that are generally wavy / rough and nonlinear.

Also, the portion shown as having a sharp angle may be rounded. Thus, the regions shown in the figures are merely approximate, and their shapes are not intended to depict the exact shape of the regions, nor are they intended to limit the scope of the present invention.

The drawings are schematic and illustrate that they are not drawn to scale. The relative dimensions and ratios of the parts in the figures are exaggerated or reduced in size for clarity and convenience in the figures, and any dimensions are merely illustrative and not restrictive. And to the same structure, element, or component appearing in more than one of the figures, the same reference numerals are used to denote corresponding or similar features in other embodiments.

The present invention is a result of continuous research for efficiently removing fine cutting chips and foreign substances in order to safely recycle a large amount of cutting oil used in an industrial field.

FIG. 4 is a perspective view of a chip discharging filter device according to an embodiment of the present invention, FIG. 5 is an exemplary photograph of a front part of FIG. 4 opened and FIG. Fig. 7 is an exemplary photograph of the filter box of Fig. 4, and Fig. 8 is an exemplary photograph taken by taking out a part of the rear face of Fig.

4, a coolant filter device 700 for a chip discharge device according to an embodiment of the present invention includes a pump 710 for sucking a coolant containing fine chips from one side and discharging the coolant to the other side, A first filter box 720 having a mesh network 723 surrounding a bottom surface and a side surface of a skeleton 721 having a rectangular box shape for filtering cutting oil discharged by the first filter box 720, A second filter box 730 having a fine mesh net 733 that surrounds the bottom and side surfaces of a skeleton 731 having a rectangular box shape that filters the cutting oil passed through the first and second filter boxes 730 and 730, And a housing 740 in the form of a rectangular box for storing and collecting the cutting oil filtered by the second filter box 730 through a return pipe 741 so as to be recyclable.

Further, when the cutting oil discharged by the pump flows from the top down, it passes through the stacked first filter box 720 and the second filter box 730 to separate and filter the fine chips.

The apparatus further includes a cutting chip discharging device (1000) for separating and discharging cutting oil containing fine chips from the cutting chip, which is generated from a general machine tool, from the cutting chip. The cutting chip discharging device And fine chips are separated and filtered.

The construction of the coolant filter device 700 for a chip discharge device according to an embodiment of the present invention will be described in detail as follows.

The coolant filter device 700 proposed in the present invention is installed at one side of a chip discharging device for a general machine tool for separating and discharging cutting chips and cutting oil.

In the present invention, the pump 710 is a device for transporting fluid or gas through a pipe using a pressure action, and has a predetermined head and flow rate.

For reference, the indication of the basic performance of the pump is expressed by the head, which indicates the height at which the pump can push the liquid or gas, and the flow rate, which indicates the volume of liquid that can be delivered per unit time.

As shown in FIGS. 4 and 5, the pump 710 has a suction pipe 711 at one side for sucking fine cutting chips discharged from the chip discharging device and a cutting oil containing foreign substances, A discharge tube 713 is formed, which is an outlet through which a hose is connected to a predetermined height.

The pump 710 suggested in the present invention may be a specially coated one such as nickel, which is free from malfunction or damage even when idling due to insufficient discharge of cutting oil.

As shown in FIGS. 4 and 6, the filter box is composed of a first filter box 720 and a second filter box 730 in a rectangular box shape, and the cutting oil falls down from the top to the bottom due to the force of gravity. And is formed to pass through the net.

The fine mesh network can use a commercially available product, and the mesh size of the mesh network is 20 to 300 μm, which allows fine cutting chips and foreign substances to be maximally caught in the cutting oil to be recycled.

The filter box is constructed by laminating the first filter box 720 on the second filter box 730 and cutting the coolant discharged by the pump 710 to the first filter box 720 first, Since the box 730 is secondarily filtered, a fine chip that has been conventionally put down is double-filtered.

Accordingly, it is possible to completely remove minute chips and foreign substances remaining without being filtered when the cutting oil is recycled, thereby preventing damage or breakage of the equipment.

7, the first filter box 720 includes a mesh box 721 having a square box shape for filtering the coolant discharged by the pump 710, a fine mesh network 723).

The second filter box 730 is composed of a skeleton 731 having a square box shape that filters the coolant that has passed through the first filter box 720 and a fine mesh net 733 that surrounds the bottom and sides of the skeleton 731.

When the cutting oil discharged by the pump 710 flows downward from the top to the bottom, the fine chips are separated and filtered while passing through the stacked first filter box 720 and the second filter box 730.

The housing 740 can be used to stack and receive the first and second filter boxes 720 and 730 and to recycle the coolant filtered at the second filter box 730 as shown in Figures 4,5, And is collected through a return pipe 741 to form an outer appearance in a rectangular box shape.

9 is a perspective view of a coolant filter device for a chip discharge device further comprising a chip discharge device according to another embodiment of the present invention.

9, a cutting oil filter apparatus 700 for a chip discharging apparatus according to another embodiment of the present invention includes a discharge pipe 300 for transferring a cutting chip dropped from a machine tool by using a transfer screw 201, And a cutting chip discharging device 1000 for use in a machine tool, which discharges the cutting oil separated from the cutting chip and discharges the cutting oil dropped from the machine tool.

One of the conventional chip discharging apparatuses according to the present invention will be described as an embodiment as follows.

A chip discharging apparatus 1000 according to an embodiment of the present invention includes a main body 100 having a rectangular parallelepiped shape having a front face 101, a rear face 102, left and right side faces 103, .

The conveyance pipe 200 is provided in which the upper half is opened and the lower half is semicircular and the front and rear ends pass through the front plate 101 and the rear plate 102 of the main body 100 and are installed in the longitudinal direction.

The pair of side plates 103 of the main body 100 are sloped downward to the upper ends of the conveyance pipe 200 to guide cutting chips and cutting oil falling from the machine tool into the transfer tube 200 And the falling face plate 104 of the lower face.

The power of the motor (not shown), which is mounted on the transfer tube 200, is transmitted through a driving gear (not shown) and a driven gear (not shown) The feed screw 201 is provided.

And a discharge pipe 300 connected to the central portion of the front plate 101 of the main body 100 and slidably connected to the transfer pipe 200 and discharging the chips transferred by the transfer screw 201 to the outside .

The pair of dropping face plates 104 are formed to extend from the middle to the rear half of the main body 100 and a cutting oil receiving portion 105 containing fine cutting chips is provided in the front half of the main body 100.

That is, a net 106 is formed in the front half of the main body 100 for separating and discharging cutting oil and cutting chips from the cutting chip. The receiving portion 105, in which the cutting oil flowing through the net 106 and the fine cutting chips collect, .

One side of the receiving portion 105 is connected to the above-described coolant filter device 700 for a chip discharging device to allow the coolant containing the fine chips to be discharged.

Particularly, the coolant filter device 700 for the chip discharge device is connected to one side of the storage part 105 to suck the coolant containing the fine chips and discharge the coolant through the discharge pipe. The coolant discharged from the fine mesh net 723 The first filter box 720 and the second filter box 730 are provided to filter the coolant through the return pipe 741.

In addition, the discharged cutting oil is automatically and doubly filtered by passing through the first filter box 720 and the second filter box 730, which are automatically stacked from top to bottom by gravity.

The open bottom surface of the conveyance pipe 200 is connected to the open upper half of the conveyance pipe 200 and is connected to the outer circumference of the conveyance pipe 200 surrounding the open upper half of the conveyance pipe 200, The cutoff pipe 400 having the plurality of outflow holes 401 and 402 formed thereon is coupled to allow the cutting oil to be fed together with the cutting chips to flow through the outflow holes 401 and 402 of the outflow pipe 400, .

On the other hand, the left and right side surfaces of the outflow pipe 400 are vertically installed on both sides of the open upper half of the transfer pipe 200, and a plurality of side outflow holes 401 are formed.

Further, the upper surface of the outflow pipe 400 is provided with a plurality of upper surface outflow holes 402 so as to be inclined downwardly toward the discharge direction of the chip.

An end of the outlet pipe 400 on the side where the cutting chips and the cutting oil are introduced is extended from the end of the outlet pipe 400 so that the upper end is located on the open upper surface of the main body 100, And a hopper portion 403 which is tightly fixed upwards along the upper surface is formed so that the cutting chips and the cutting oil can smoothly enter the transfer section where the outflow pipe 400 is located.

On the other hand, the top surface of the outflow pipe 400 disposed at the central portion of the accommodating portion 105 is formed with the netting 106 on the upper side so that the cutting chips and the cutting oil can enter into the accommodating portion 105.

The coolant flows out through a plurality of outflow holes 401 and 402 formed around the outer surface of the outflow pipe 400 so as to flow into the accommodating portion 105 through the net 106 of the accommodating portion 105, The cutting chips and foreign substances contained in the cutting oil are automatically collected into the accommodating portion 105 so as to be automatically suctioned into the cutting oil filter device 700 for the chip discharging device installed outside, It is possible to purify the contaminated cutting oil.

Accordingly, the coolant filtered more cleanly through the coolant filter device 700 for the chip discharge device can be recovered and recycled.

When a motor (not shown) is operated by supplying external power through a power supply line, a rotation force of the motor shaft is transmitted to the driving gear (not shown) (Not shown) and a driven gear (not shown), and a conveying screw 201 whose one end is coupled to a driven gear (not shown) starts rotating.

The feed screw 201 can be automatically rotated simultaneously with the operation of the machine tool under the control of a control box (not shown), and can be manually rotated as necessary.

When the feed screw 201 is rotated by the motor, the cutting chips and cutting oil falling from the machine tool fall onto a pair of dropping face plates 104 formed on the upper half of the main body 100.

The cutting chips and the cutting oil are guided by a pair of dropping face plates 104 formed downwardly inclined toward the open upper half of the transport pipe 200 and flow into the transport pipe 200 whose lower half is semicircular.

The cutting chips and the cutting oil introduced into the transfer pipe 200 are conveyed toward the discharge pipe 300 by the transfer screw 201 which is seated inside the transfer pipe 200 and rotates.

The cutting chips and the cutting oil transferred to the discharge pipe 300 by the transfer screw 201 are collected at the inlet side of the discharge pipe 400 by the hopper part 403 provided at one end of the discharge pipe 400, 400).

The cutting chips and the cutting oil which have entered into the outlet pipe 400 are connected to the upper half of the open pipe of the transfer pipe 200 and the outlet pipe 400 having the plurality of outlet holes 401 and 402 formed around the outer side thereof The transfer section is passed.

When the cutting chip 201 and the cutting oil pass through the conveying section where the outflow pipe 400 is positioned by the conveying screw 201, the cutting chip is conveyed to the first half of the main body 100 by the outflow pipe 400 and the conveyance pipe 200 And is discharged to the outside through the discharge pipe 300 after passing through the transfer section where the discharge pipe 400 is located.

On the other hand, the cutting oil flows over the open upper half of the transfer pipe 200 when passing through the transfer section where the discharge pipe 400 is located, flows out through the discharge holes 401 on both sides of the discharge pipe 400, Through the net 106 provided below both sides of the receiving portion 105. [

The cutting oil dropped into the accommodating portion 105 is automatically sucked by the above-described coolant filter device 700 so as to be double-filtered and cleaned appropriately for recycling.

In the process of cutting oil flowing over the open upper part of the transfer tube 200 when the cutting oil passes through the transfer section where the discharge tube 400 is located, The discharge port (not shown) of the discharge pipe 300 formed upward at the center of the front plate 101 of the main body 100 is connected to the transfer pipe 200 The cutting oil flows backward without being discharged to the discharge pipe 300 and overflows the open upper half of the transfer pipe 200 in the transfer section where the discharge pipe 400 is located, Flows out to the outflow holes 401 formed on both side surfaces of the housing 400 or 400 and flows out to the outflow holes 402 formed on the upper surface and falls into the accommodating portion 105.

In this case, fine chips or foreign substances, which are small in size, flowing along with the cutting oil in the course of cutting oil passing through the net 106 are collected by the receiving portion 105 together with the cutting oil, and the receiving portion is maintained at a predetermined height And the remaining cutting oil flows into a coolant storage receptacle (not shown) not shown in the drawing, and a small size chip and foreign matter remaining in the coolant are introduced into the coolant filter device 700 for a chip discharge device And is then subjected to a purification process.

As described above, the chip discharging filter device further includes the chip discharging device according to another embodiment of the present invention, the cutting chip falling from the machine tool is discharged to the outside through the discharge pipe 300, Flows out through a plurality of outflow holes 401 and 402 formed around the outer surface of the outflow pipe 400 while passing through an outflow pipe 400 coupled to one upper half of the pipe 200, So that the chips are discharged to the lower portion of the main body 100 in a state in which the chips and the foreign substances with a small size are separated into the receiving portions 105 by being dropped onto the net 106 of the accommodating portion 105 provided below, Some of the cutting oil can be rapidly discharged to one side of the main body while the cutting oil is maintained at a predetermined height while minimizing the phenomenon and chips and foreign matters of a small size remaining in the cutting oil are collected in the accommodating portion 105, The filter device 700 can be discharged by suction (suction).

It will be apparent to those skilled in the art that various modifications, additions and substitutions are possible, without departing from the essential characteristics of the invention. will be.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings .

The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

700: Filter device for chip discharge 710: Pump
720: first filter box 730: second filter box
740: Housing

Claims (3)

CLAIMS 1. A coolant filter apparatus for a chip discharge apparatus for filtering minute chips,
A pump for sucking the cutting oil containing the fine cutting chips from one side and discharging the other side,
A first filter box provided with a fine mesh net surrounding a bottom surface and a side surface of a skeleton of a square box shape for filtering cutting oil discharged by the pump,
A second filter box provided at a lower portion of the first filter box and equipped with a fine mesh net surrounding a bottom surface and a side surface of a rectangular box shaped skeleton for filtering the coolant passed through the first filter box,
And a housing having a rectangular box shape in which the first and second filter boxes are stacked and accommodated and the coolant filtered by the second filter box is stored for recycling and collected through a return pipe,
Wherein when the cutting oil discharged from the pump flows downward from the top and bottom of the filter box, the fine filter chip is separated and filtered while passing through the first filter box and the second filter box stacked. . The method according to claim 1,
Wherein the mesh size of the mesh net is 20 to 300 mu m. The method according to claim 1,
Further comprising a cutting chip discharging device for separating and discharging the cutting fluid containing the fine chips from the cutting chip,
And the cutting oil discharging device is connected to one side of the pump to separate and filter the cutting oil and the fine cutting chips.

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