JPH0655404A - Cutting fluid filter - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a filtering device capable of collecting cutting fluid without mixing levitational cutting chips and preventing clogging of a filtering member. [Structure] Inlet 5 for cutting fluid 14 and filtered cutting fluid 12
And an outlet 6 of the storage tank 4. A cutting waste discharge duct 8 that rises obliquely upward from the storage tank 4 and has an opening 7 at the upper portion is connected to the storage tank 4, and an endless chain conveyor 9 driven by a drive device 10 discharges the storage tank 4 and the cutting waste. It is provided in the duct 8. The outflow port 6 is provided along the track of the chain conveyor 9, and the outflow port 6 is provided with a filtering member 11 that filters out the curled cutting waste 13b from the cutting fluid 14. The chain conveyor 9 is provided with a plurality of plate-shaped members 22 so as to be orthogonal to the carrying direction. The plate-shaped member 22 scrapes off the curled cutting chips 13b adhering to the filtration member 11, while scraping off the chip-shaped cutting chips 13a deposited on the bottom of the storage tank 4 to open the opening 7.
Discharge from.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filtering device for filtering cutting fluid discharged together with cutting chips from a machine tool for cutting metal materials to separate the cutting chips and recover the cutting liquid. is there.

[0002]

2. Description of the Related Art Conventionally, in machine tools for cutting metal materials with tools such as drills, reamers, taps, and cutting tools,
Cutting fluid is used to improve the cutting efficiency by cooling the tool when cutting a metal material, and the cutting fluid separates the cutting waste after being discharged together with the cutting waste of the metal material. Have been collected and reused.

As an apparatus for separating cutting chips from the cutting fluid, for example, there is an apparatus disclosed in Japanese Utility Model Laid-Open No. 4-50102. FIG. 5 is a plan view of the device disclosed in the above publication, and FIG. 6 is a sectional view taken along line VI-VI of FIG.

The apparatus disclosed in the above publication, as shown in FIGS. 5 and 6, stores a cutting fluid 52 discharged from a machine tool (not shown) together with cutting waste 51 of a metal material in a storage tank 53. A screw conveyor 54 is provided inside the storage tank 53, and the storage tank 53 is provided on the downstream side of the screw conveyor 54.
It is configured such that a cutting waste discharge duct 56 that rises obliquely upward from the above and has an outlet 55 at the upper part is continuously provided, and an endless chain conveyor 57 is provided in the storage tank 53 and the cutting waste discharge duct 56. The endless chain conveyor 57 is driven by the motor M2 and circulates in the storage tank 53 and the discharge duct 56. Further, the endless chain conveyor 57 scoops up the cutting waste 51 that has settled on the bottom of the storage tank 53 along the cutting waste discharge duct 56 when being driven to circulate in the storage tank 53 and the discharge duct 56. A plurality of scooping plates 58, which are discharged from the discharge port 55 above the cutting waste discharge duct 56, are attached at equal intervals.

In the above apparatus, the cutting waste 51 discharged from the machine tool is separated from the cutting liquid 52 in the storage tank 53 and settles on the bottom of the storage tank 53. Then, after being accumulated on the downstream side by the screw conveyor 54, it is raked along the cutting waste discharge duct 56 by the scraping plate 58 attached to the endless chain conveyor 57, and the upper part of the cutting waste discharge duct 56. It is discharged from the discharge port 55. On the other hand, the cutting liquid 52 collects the supernatant obtained by separating the cutting waste 51 in the storage tank 53 and reuses it.

According to the above apparatus, since the cutting wastes 51 are accumulated by the screw conveyor 54 and then discharged by the scraping plate 58, the cutting wastes 51 can be discharged efficiently, and the supernatant of the cutting fluid 52 is discharged. Are said to be easier to collect.

However, there are two types of metal material cutting chips, such as chip-shaped ones and curl-shaped ones produced by boring, drilling, etc. When the metal material is an aluminum material or the like, the curl-shaped cutting chips are Since there is a tendency for the cutting fluid to float on the surface of the cutting fluid, there is a disadvantage that the curled cutting chips are mixed in the cutting fluid to be collected in the device.
It is also conceivable to filter the curled cutting chips by using an appropriate filtering member such as a punching plate to collect only the filtered cutting fluid, but at this time, the filtering member is clogged with the curled cutting chips. Since it is easy to do, maintenance of the filter member is essential.

[0008]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned inconvenience, can separate the floating cutting chips by filtration to collect the cutting fluid in which the cutting chips are not mixed, and clog the filtering member. It is an object of the present invention to provide a filtration device that can prevent the occurrence of maintenance and does not require maintenance.

[0009]

In order to achieve such an object, the cutting fluid filtering apparatus of the present invention is a cutting tool which is discharged together with a chip-like cutting scrap and a curl-like cutting scrap from a machine tool for cutting a metal material. A filtering device for filtering a liquid to separate the cutting wastes and recover the cutting liquid, comprising a flow inlet into which the cutting liquid discharged from the machine tool flows and a flow outlet from which the filtered cutting liquid flows out. A storage tank for storing cutting fluid flowing in from the inflow port is provided, and a cutting waste discharge duct having an opening that rises obliquely upward from the storage tank and discharges cutting waste to the upper portion is continuously provided in the storage tank, An endless chain conveyor driven by a drive device provided outside is provided in the storage tank and the cutting waste discharge duct, and an outlet of the storage tank is provided along a track of the endless chain conveyor, Cuts stored in the tank A filter member for separating the curled cutting waste from the liquid is provided at the outlet, and the endless chain conveyor is separated from the cutting liquid when the endless chain conveyor is circulated in the storage tank and the cutting waste discharge duct. While curling off the curl-shaped cutting chips adhering to the member, the chip-shaped cutting chips settled on the bottom of the storage tank are scraped up along the cutting-dust discharging duct and discharged from the opening of the cutting-dust discharging duct. A plurality of plate-shaped members are provided on the endless chain conveyor so as to be orthogonal to the conveying direction.

Further, in the cutting fluid filtering apparatus of the present invention, the curled cutting waste floating in the storage tank is hooked and conveyed along the cutting waste discharge duct, and The plate-shaped member is provided with a plurality of claw-shaped members to be discharged from the opening.

[0011]

According to the cutting fluid filtering apparatus of the present invention, the cutting fluid discharged together with the cutting chips from the machine tool for cutting the metal material flows from the inflow port and is stored in the storage tank. Of the cutting chips, chip-shaped ones settle at the bottom of the storage tank, but when the metal material is an aluminum material or the like, boring, curled cutting chips generated by drilling or the like tend to float on the liquid surface. is there. For this reason, the curled cutting chips are accompanied by the flow of the cutting fluid flowing out from the outflow port toward the outflow port, but since the outflow port is provided with the filtering member, the curled cutting chips are filtered by the filtering member. Only the filtered cutting fluid flows out. Therefore, the cutting waste does not mix with the filtered cutting fluid.

On the other hand, in the storage tank, there is continuously provided a cutting waste discharge duct that rises obliquely upward from the storage tank and has an opening at the upper part, and an endless chain driven by a drive device provided outside. A conveyor is provided in the storage tank and the cutting waste discharge duct. The endless chain conveyor is provided with a plurality of plate-shaped members so as to be orthogonal to the transport direction of the endless chain conveyor,
The outlet is provided along the track of the endless chain conveyor.

Therefore, when the endless chain conveyor is driven to circulate in the storage tank and the cutting waste discharge duct, the plate member slides along the filtering member, is filtered from cutting fluid, and is filtered. The curled cutting waste adhering to the member is scraped off. Therefore, the filter member does not become clogged with the curled cutting dust, and maintenance is unnecessary.

The plate-like member slides along the filter member, and then slides along the bottom of the storage tank and the cutting waste discharge duct. At this time, the plate-shaped member,
The chip-shaped cutting waste that has settled on the bottom of the storage tank is scraped along the cutting waste discharge duct and discharged from the opening of the cutting waste discharge duct.

Further, according to the cutting fluid filtering device of the present invention, by providing the plate-shaped member with a plurality of claw-shaped members, the plate-shaped member is scraped off from the filtering member and floats in the storage tank. The curled cutting waste that is being processed is hooked on the claw-shaped member. The claw-shaped member conveys the curled cutting waste along the cutting waste discharge duct while holding the curl, and discharges it from the upper opening of the cutting waste discharge duct.

Therefore, the cutting waste in the storage tank is efficiently discharged regardless of whether it is curled or chipped.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The cutting fluid filtering device of the present invention will be described in more detail with reference to the accompanying drawings. Figure 1
2 is a front view showing an embodiment of the filtration device of the present invention, FIG. 2 is a plan view of the essential parts of the filtration device shown in FIG. 1, and FIG. 3 is III- of FIG.
A sectional view taken along line III, and FIG. 4 are perspective views of the plate-shaped member and the claw-shaped member shown in FIG.

As shown in FIG. 1, a cutting fluid filtering apparatus 1 of the present embodiment is a machine tool 2 for cutting an aluminum material.
And a storage tank 4 which is disposed on the side of the cutting tool and stores cutting waste and cutting fluid discharged from the machine tool 2 through the cutting fluid discharge trough 3. On the upper surface of the storage tank 4, an inflow port 5 into which cutting waste and cutting fluid discharged from the cutting fluid discharge trough 3 flow is provided, and the periphery of the inflow port 5 is an outflow port 6.

A cutting waste discharge duct 8 having an opening 7 that rises diagonally upward in the storage tank 4 and discharges cutting waste in the upper part.
The storage tank 4 and the cutting waste discharge duct 8 are provided with an endless chain conveyor 9. The endless chain conveyor 9 is driven by a drive motor 10 provided above the cutting waste discharge duct 8.

Since the outlet 6 is provided on the upper surface of the storage tank 4, it is provided inside the storage tank 4 and the cutting waste discharge duct 8 so as to follow the track of the endless chain conveyor 9. A filter member 11 is provided at 6. A filtration tank 12 is provided outside the storage tank 4, and the cutting fluid from which cutting dust has been filtered by the filtration member 11 overflows from the outlet 6 to the filtration tank 12.

Next, the configuration of each part of the filtration device 1 will be described with reference to FIGS.

A filtration tank 12 is provided outside the storage tank 4, and a chip-shaped cutting waste 13a, a curl-shaped cutting waste 13b and a cutting liquid 1 are discharged to the upper portion through a cutting-fluid discharge trough 3.
4 are provided, and the entire upper surface of the storage tank 4 excluding the inlet 5 serves as an outlet 6, and the outlet 6 is provided with a filtering member 11 formed of a punching plate. The cutting waste discharge duct 8 is continuously provided on the side opposite to the cutting fluid discharge gutter 3 with respect to the inflow port 5 with the same width as the storage tank 4.

A shaft 15 is provided at an end of the storage tank 4 on the cutting fluid discharge gutter 3 side, and a pair of sprockets 16 are pivotally supported at both ends of the shaft 15. A shaft 17 is provided at the upper end of the cutting waste discharge duct 8, and a pair of sprockets 18 are pivotally supported at both ends of the shaft 17. A driven pulley 19 is axially supported on the shaft 17 outside the cutting waste discharge duct 8,
It is connected to a drive pulley 21 of the drive motor 10 via a belt 20. Then, a pair of endless chain conveyors 9, 9 are hung on the sprockets 16, 18 and driven by a drive motor 10 to circulate in the storage tank 4 and the cutting waste discharge duct 6.

Between the endless chain conveyors 9 and 9,
When the endless chain conveyor 9 is circularly driven in the storage tank 4 and the cutting waste discharge duct 8, it is separated from the cutting fluid and adheres to the lower surface of the filtering member 11 curl-like cutting waste 13b.
A plurality of plate-shaped members for scraping off the chips, scraping the chip-shaped cutting chips 13a settled on the bottom of the storage tank 4 along the cutting chip discharge duct 8 and discharging the chips from the upper opening 7 of the cutting chip discharge duct 8. 22 are attached at equal intervals so as to be orthogonal to the transport direction of the endless chain conveyor 9. In addition, the plate-shaped member 22 has a curl-like cutting waste 1 floating in the storage tank 4.
A plurality of claw-shaped members 23 for hooking 3b, carrying it along the cutting waste discharge duct 8 and discharging it from the upper opening 7 of the cutting waste discharge duct 8 are attached at equal intervals.

The plate-shaped member 22 has an L-shaped cross section, and as shown in FIG. 4, the vertical portion 22a is directed toward the bottom of the storage tank 4 and the discharge conveyor 8 or the lower surface of the filtering member 11, and the horizontal portion 22 is formed.
It is screwed to the endless chain conveyor 9 via the mounting member 24 attached to b. Further, the claw-shaped member 23 is L
The plate-shaped member 22 is shaped like a hook and is located on the side opposite to the plate-shaped member 22 with respect to the endless chain conveyor 9 and has its tip facing the transport direction of the endless chain conveyor 9.
Is attached to the vertical portion 22a of the.

Further, at the important points of the storage tank 4 and the discharge conveyor 8, the vertical portion 22a of the plate member 22 slides along the bottom surface of the storage tank 4 and the discharge conveyor 2 or the lower surface of the filter member 11. A guide rail 25 that restricts the track of the endless chain conveyor 9 is provided.

Next, the operation of the filtering device 1 will be described.

First, the chip-shaped cutting chips 13a, the curl-shaped cutting chips 13b and the cutting liquid 14 discharged from the machine tool 2 through the cutting liquid discharge trough 3 are introduced into the storage tank 4 from the receiving port 5. When the metal material is a light metal such as an aluminum material, the chip-shaped cutting chips 13a settle in the cutting fluid 14, but the curled cutting chips 13b tend to float on the surface of the cutting fluid 14. Therefore, the chip-shaped cutting chips 13a separated from the cutting liquid 14 in the storage tank 4 are deposited on the bottom of the storage tank 4, and the curled cutting chips 13b are accompanied by the flow of the cutting liquid 14 and flow on the upper surface of the storage tank 4. Head towards Exit 6.

Since the outlet 6 is provided with the filtering member 11, when the cutting fluid 14 passes through the filtering member 11, the curled cutting waste 13b is filtered by the filtering member 11 so that only the cutting fluid 14 is present. Overflow from the outer periphery of the storage tank 4 to the filtration tank 12 provided outside the storage tank 4. Then, the curled cutting chips 13b are left behind in a state of being attached to the lower surface of the filtering member 11.

If the curled cutting waste 13b is left as it is, it causes the clogging of the filtering member 11, but in the filtering device 1, the endless chain conveyor 9 is circulated in the storage tank 4 and the cutting waste discharge duct 8. And a vertical portion 22 of the plate-like member 22 provided on the endless chain conveyor 9
a slides along the lower surface of the filter member 11. Therefore, the curl-shaped cutting chips 13b adhering to the lower surface of the filtering member 11 are scraped off by the end face of the vertical portion 22a, and the filtering member 11 is always maintained in a state of not being clogged.

Next, the plate-shaped member 22 is driven by the endless chain conveyor 9 and rotated along the shaft 15 provided at the end of the storage tank 4, so that the plate-shaped member 22 is inverted and follows the bottom surface of the storage tank 4. Slide. Since the chip-shaped cutting chips 13a are deposited on the bottom surface of the storage tank 4 as described above, the plate-shaped member 22 sweeps the chip-shaped cutting chips 13a at the vertical portion 22a, and the bottom surface of the cutting chip discharge duct 8 is swept. Fry along.
Then, it is swept and discharged from the opening 7 provided in the upper part of the cutting waste discharge duct 8.

While the claw-shaped member 23 is driven by the endless chain conveyor 9 to move inside the storage tank 4, the claw-shaped cutting waste 13b scraped off from the lower surface of the filter member 11 by the plate-shaped member 22 is hooked. Stop and transport. Curled cutting waste 1
3b naturally drops when the claw-shaped member 23 rotates along the shaft 17 provided at the upper end of the cutting waste discharge duct 8, and is discharged from the opening 7.

Below the opening 7, a tip bucket 26 is provided.
Is provided, and the chip-shaped cutting chips 13a and the curl-shaped cutting chips 13b discharged from the opening 7 are accommodated therein.

The cutting fluid 14 overflowing from the storage tank 4 to the filtration tank 12 is recovered by an appropriate means such as a pump provided in the filtration tank 12 and reused. Further, a plurality of filtration tanks 12 are arranged in series, and the cutting fluid 14 is used for each filtration tank 1.
2 may be sequentially overflowed. By doing so, while the cutting fluid 14 sequentially overflows the respective filtration tanks 12, fine solid matter is settled and separated, and the cutting fluid 14
Can be further cleaned and recovered.

[0035]

As is apparent from the above, according to the cutting fluid filtering apparatus of the present invention, a filtering member is provided at the outflow port of the storage tank to filter the levitational cutting debris so that only the cutting fluid overflows. Since it is made to flow, clean cutting fluid can be collected without mixing cutting chips.

Moreover, since the outlet is provided along the track of the endless chain conveyor, the endless chain conveyor is circulated and driven in the storage tank and the cutting waste discharge duct to thereby endow the endless chain conveyor. A plurality of plate-shaped members provided on the conveyor so as to be orthogonal to the conveying direction slide along the filtering member to scrape off the curl-like levitation cutting waste adhering to the filtering member. . Therefore, the filtering member is not clogged with the floating curl-like cutting chips, and continuous operation can be performed for a long period of time without maintenance.

The plate-shaped member slides along the filtering member and then slides along the bottoms of the storage tank and the cutting waste discharge duct to settle on the bottom of the storage tank. It is possible to scrape and remove the chip-shaped cutting chips that are being produced along the cutting chip discharge duct.

Further, according to the cutting fluid filtering device of the present invention, by providing the plate-shaped member with a plurality of claw-shaped members, the plate-shaped member is scraped off from the filtering member and floats in the storage tank. The curl-like floating cutting waste that is being processed can be hooked, transported, and discharged. Therefore,
Regardless of whether the cutting waste in the storage tank is curled or chip-shaped, the cutting waste can be efficiently discharged, and the cutting fluid can be easily collected.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a cutting fluid filtering device according to the present invention.

FIG. 2 is a plan view of a main part of the filtration device shown in FIG.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a perspective view of a plate-shaped member and a claw-shaped member shown in FIG.

FIG. 5 is a plan view showing an example of a conventional cutting fluid recovery device.

6 is a sectional view taken along line VI-VI of FIG.

[Explanation of symbols]

1 ... Filtration device, 2 ... Machine tool, 4 ... Storage tank, 5 ...
Inflow port, 6 ... Outflow port, 7 ... Opening part, 8 ... Cutting waste discharge duct, 9 ... Endless chain conveyor, 10 ... Driving device, 11 ... Filtration member, 13a ... Chip-like cutting waste, 1
3b ... Curl-shaped cutting chips, 14 ... Cutting fluid, 22 ... Plate-shaped member, 23 ... Claw-shaped member.

Claims (2)

[Claims] 1. A filter device for filtering cutting fluid discharged from a machine tool for cutting a metal material together with chip-shaped cutting waste and curled cutting waste to separate the cutting waste and recover the cutting fluid. A storage tank is provided, which is provided with an inflow port for the cutting fluid discharged from the machine tool and an outflow port for the filtered cutting fluid to flow out, and is provided with a storage tank for storing the cutting fluid flowing in from the inflow port. A cutting waste discharge duct having an opening that rises upward and discharges cutting waste at the upper part is connected to the storage tank, and an endless chain conveyor driven by an externally provided drive device is used as the storage tank and the cutting. A filter member is provided in the waste discharge duct, the outlet of the storage tank is provided along the track of the endless chain conveyor, and a filter member for filtering out the curled cutting waste from the cutting fluid stored in the storage tank is provided. Provided at the exit, the endless chain The curl-shaped cutting chips separated from the cutting liquid and adhering to the filtering member are scraped off when the conveyor belt is circulated in the storage tank and the cutting-scrap discharge duct, while the curled cutting chips are deposited on the bottom of the storage tank. A plurality of plate-shaped members that scrape chip-like cutting waste along the cutting waste discharge duct and discharge it from the opening of the cutting waste discharge duct are provided on the endless chain conveyor so as to be orthogonal to the conveying direction. A cutting fluid filtering device. 2. A plurality of claw-shaped members for hooking curled cutting chips floating in the storage tank, transporting the curled cutting chips along the cutting waste discharge duct, and discharging the curled cutting waste from an opening of the cutting waste discharge duct. The filtering device for cutting fluid according to claim 1, wherein the filtering member is provided on the plate member.