JPH1190763A - Drum filter type separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a chip discharge conveyer width according to the chip quantity by laying a chain which supports a plurality of scrapers parallel to each other at some intervals between a gear toward a chip disposal part of a chip carrier board in the end part of a coolant input tank and a gear of a filter drum. SOLUTION: Chips precipitated in the bottom 10 of a coolant input tank is continuously conveyed to a sectional circular arc part 11 by three semicircular inclined scrapers 9 which are provided in the 1/2 of the outer circumference of a rotating filter drum 4. The chips conveyed in the sectional circular arc part 11 are so conveyed that the scrapers 22 of a conveyer supported parallel to each other at some intervals by the chain which is laid across the gear rotatably journalled between side plates 21 toward the chip disposal part and the gear 5 of the filter drum, slide the chip conveyer plate surface or the extension part of a rising plate. The chips are disposed from the chip disposal part and recovered in a chip recovery box arranged in the bottom.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coolant (Cool) mixed with swarf discharged during metal cutting.
ant) relates to a drum filter type separator for filtering a liquid.

[0002]

2. Description of the Related Art Coolant liquid mixed with chips discharged during metal cutting is filtered, filtered, cooled and circulated. There are various types of devices for filtering chips from the coolant liquid containing the chips,
Among them, a drum filter type separator is most frequently used.

[0003] The drum filter type separator is arranged such that a filtration drum having a body stretched with a filter is rotated in a tank, and a coolant liquid containing chips is introduced between the tank and the filtration drum. The coolant liquid is separated into chips and coolant liquid by a filter drum, and the chips separated and settled at the bottom of the tank are discharged to the outside along a tank wall by a chip discharge conveyor. In general, a part thereof is jetted to the inner surface of the filtration drum, and backwashing is performed to prevent clogging of the filter.

[0004] As a drum filter type separator, for example, a plate for suspending an endless band is arranged on both sides, and a filter is wound around the body, and a rotating shaft of a round bar is fixed to one and an annular rotating shaft is fixed to the other. A solid material transport plate having a coolant drum, a coolant liquid inlet, a bottom surface formed in an arcuate cross section, one of which is extended as an inclined rising plate, and an extended end portion of which is a solid waste portion. The coolant rod charging tank is configured on both sides of the plate, the round rod rotation shaft provided on one side plate, the round rod rotation shaft of the filtration drum, the annular rotation bearing provided on the other side plate of the filtration drum of the rotation drum An annular rotating shaft is rotatably supported, and an annular opening is formed by the annular rotating shaft of the filtration drum and an annular rotating bearing of a coolant liquid supply tank that supports the annular rotating shaft. With a receiving tank A wheel is rotatably mounted on both sides of the coolant liquid supply tank, above the filtration drum which is suspended in the above-described state, and at a position near the solids dumping portion of the solids transport plate, and a wheel and a filtration drum are provided. An endless belt in which a plurality of scraping plates are arranged in parallel with mounting pieces at intervals between the plates is rotatably suspended between the plates, and the driving force from a driving source is received by a wheel or a filtration drum and rotated. Then, the rotation is transmitted to the endless band, and the scraping plate attached to the endless band slides on the bottom surface of the coolant supply tank and the solid material transfer plate surface to rotate. 3-
No. 8802) has been proposed.

[0005]

SUMMARY OF THE INVENTION The aforementioned Japanese Patent Publication No. 3-880
In the filtration device disclosed in Japanese Patent Publication No. 2 (1993) -1994, the scraping plate attached to the endless belt slides and scrapes off the chips collected on the bottom surface of the coolant liquid supply tank, so that the width of the filtration drum and the width of the filtering drum are reduced. The board width is almost the same. However, the drum width of the drum filter type separator is determined by the flow rate of the coolant liquid, and a predetermined size is required, but the chip discharge conveyor width is independent of the flow rate of the coolant liquid,
It should be determined by the amount of chips mixed in the coolant.

SUMMARY OF THE INVENTION An object of the present invention is to provide a drum filter type separator in which the disadvantages of the prior art are eliminated and the width of the chip discharge conveyor is reduced in accordance with the amount of chips mixed in the coolant liquid.

[0007]

According to a first aspect of the present invention, there is provided a drum filter type separator, wherein a gear for suspending a chain is disposed at an end portion, a filter is wound around a body circumference, and a drum opposite to the gear is provided. A transport blade is provided on the outer periphery, a round bar rotating shaft is provided at an end opposite to the gear, a filter drum having a fixed annular rotating shaft is provided on the gear side, a coolant liquid supply chute is provided, and a bottom surface on which the gear is located is provided. Is formed into a deep circular arc shape, one of which is extended as a rising plate, and the extended portion is used as a chip conveying plate as a chip dumping portion, and the remainder is a coolant liquid charging tank formed with a circular arc cross section. The round rod rotating shaft of the filtration drum is mounted on a round rod-shaped rotating bearing provided on one side plate of both side plates, and the annular rotating shaft of the filtration drum is rotatably mounted on an annular rotating bearing provided on the other side plate. Rotating shaft of filtration drum and shaft An annular open portion is formed by an annular rotary bearing of a coolant liquid input tank, and a receiving tank is arranged on the side of the annular open portion on the side plate side. A gear is rotatably mounted above the rising plate and at a position near the chip dumping portion of the chip transport plate, and a plurality of scraping plates are spaced apart and parallel between the gear and the gear of the filtration drum. The supported chain is looped around, the driving force from the driving source is received by the gear, the filter drum is rotated through the chain, and the chips collected at the bottom of the coolant liquid charging tank by the transfer blade are removed from the bottom of the coolant liquid charging tank. And the scraping plate supported by the chain slides on the deep arcuate section and the chip transport plate surface that are continuous with the bottom of the coolant input tank, and turns deep. Half to arc-shaped section Is set to be discharged from the chip dumping portion conveyed chips by Jo inclined scraper.

According to the drum filter type separator of the first aspect of the present invention, by employing the above-described structure, the coolant mixed with the cutting chips flowing into the coolant input tank can be used as the coolant.
When passing through the rotating filtration filter, it is precisely filtered, and the regenerated coolant liquid is collected and recycled. On the other hand, the chips discharged from the chip dumping section by the scraper
For example, a chip collecting box is disposed below the chip dumping unit to collect the chips.

In the drum filter type separator according to the first aspect of the present invention, since the width of the chip conveying conveyor can be reduced in accordance with the amount of chips by adopting the above configuration, the chips can be cut by one chain. The conveyor can be driven. Further, the chips collected at the bottom of the coolant supply tank are continuously scraped out by conveying blades provided on the outer periphery of the filtration drum, fall into the conveyor, and are conveyed and discharged by the conveyor.

According to a second aspect of the present invention, there is provided the drum filter type separator according to the first aspect, wherein the coolant nozzle sprayed from the annular opening of the filter drum faces the filter. Then, a coolant liquid containing no chips is provided so as to be able to be sprayed from the inner surface of the filter. In this way, the coolant nozzle that has been filtered from the annular opening of the filter drum faces the filter and is disposed so that the coolant liquid that does not contain chips can be sprayed from the inner surface of the filter. The cooled coolant liquid can be continuously sprayed, and clogging of the filter can be prevented.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The object to be filtered by the drum filter type separator of the present invention is a coolant liquid mixed with cuttings generated during cutting of steel, aluminum, stainless steel, copper, etc. by various machine tools.

As a filter wound around the outer periphery of the filtration drum of the drum filter type separator of the present invention, a filter cloth and a wire mesh are suitable.
Those having a mesh size of 00 to 150 are suitable. When the filter is attached to the outer periphery of the filtration drum, the end holding frame of the filter is fixed by a flathead bolt.

The transport blades provided on the outer periphery of the filtration drum of the drum filter type separator of the present invention are not particularly limited as long as they can transport chips collected at the bottom of the coolant supply tank, and are not particularly limited. A plurality of halves of the drum circumference, for example, 2
A half-moon-shaped inclined scraper in which about 5 pieces are partially wrapped with each other can be considered. If the half-moon-shaped inclined scraper is a plurality of pieces, for example, two to five pieces depending on the processing capacity, partly wrapped with each other and placed on a half of the outer circumference of the filtration drum, chips collected at the bottom of the coolant supply tank are provided. Can be conveyed into the conveyor as if they were continuous. Further, the transport blade provided on the outer periphery of the filtration drum is fixed to the drum and rotates together with the filtration drum, so that no special driving device is required. Furthermore, since the half-moon-shaped inclined scraper of the transport blades on the outer periphery of the filter drum is provided on one half of the outer periphery of the drum, it can be removed without removing the filter drum, and the filter such as filter cloth or wire mesh can be easily replaced. Can be.
Furthermore, if the screw blade is divided into a plurality and fixed, the screw blade can be removed without removing the filter drum, and the filter such as a filter cloth or a wire mesh can be easily replaced.

Since the width of the chip discharge conveyor of the drum filter type separator according to the present invention is reduced in accordance with the amount of chips, it can be driven together with the filter drum by one chain and can support the scraping plate. it can.

The spray nozzle of the filtered coolant liquid arranged facing the filter of the drum filter type separator of the present invention can continuously spray the coolant liquid filtered from the inside of the filter, and the fine chips adhering to the filter surface can be removed. It is constantly cleaned and the filter does not become clogged.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the drum filter type separator of the present invention will be described below with reference to FIGS. Fig. 1 shows the transfer blades as 3
FIG. 2 is a partially cutaway side view of FIG. 1, FIG. 3 is a partially cutaway front view of FIG. 1, and FIG. 4 is a partially cutaway side view of the drum filter type separator of the present invention provided with a plurality of half-moon-shaped inclined scrapers. FIG. 2 is a view taken along the line AA in FIG. 1.

1 to 4, reference numeral 1 denotes a drum filter type separator, 2 denotes a coolant supply tank, 3 denotes a coolant supply chute to the coolant supply tank 2, and 4 has a gear 5 at one end and another end. The filter drum has a round bar rotating shaft 6 fixed to the shaft portion and an annular rotating shaft 7 fixed to the gear 5 side.
A wire mesh filter 8 having a mesh size of 100 to 150 mesh is fixed.
The half-moon-shaped inclined scrapers 9 are arranged so as to wrap with each other. The bottom surface 10 of the coolant supply tank 2 is formed to have an arc-shaped cross section similar to the rotation outer periphery of the semicircular inclined scraper 9 on the outer periphery of the filtration drum 4, and one of them is extended to form the coolant supply chute 3. The filtration drum 4
A chip conveying plate having a deep circular arc-shaped portion 11 continuous with the bottom surface 10 with a predetermined width around the gear 5 at one end thereof, one of which is extended as a rising plate, and the extended portion is a chip dumping portion 12. It is assumed to be 13.

Reference numeral 15 denotes a round bar rotary bearing provided on one side plate 16 of the coolant supply tank 2, and reference numeral 17 denotes an annular rotary bearing provided on the other side plate 18. A rotary shaft 6 is rotatably mounted on an annular rotary bearing 17 on an annular rotary shaft 7 on the gear 5 side of the filter drum 4. Reference numeral 19 denotes an annular rotating shaft 7 of the filter drum 4 and a side plate 1 of an annular rotating bearing 17 of a coolant liquid charging tank 2 which supports the annular rotating shaft 7.
8 is an annular open portion.

Reference numeral 20 denotes a gear rotatably mounted between the side plates 21 of the extension of the rising plate near the chip dumping unit 12.
A chain 23 supporting a plurality of scraping plates 22 in parallel with a gap between the gear 5 is wound around the gear 23, and the shaft of the gear 20 is rotated by a drive source 24. The filter drum 4 rotates, and the coolant liquid mixed with the swarf supplied to the coolant input tank 2 is filtered by the filter 8 of the filter drum 4, and the coolant liquid from which the swarf is removed is removed by the filter drum 4. It overflows from inside into the tank 25 from the annular opening 19. The filtered chips settle down and accumulate on the bottom surface 10, and the accumulated chips are wrapped with each other by three crescent-shaped inclined scrapers 9 arranged in a deep arcuate cross section continuous with the bottom surface 10. 11, the scraping plate 22 slides between the arcuate section 11 and the chip conveying plate 13 which is an extension of the rising plate, and conveys the chips to the chip dumping unit 12.

Reference numeral 26 denotes a coolant injection pipe which penetrates the other side plate 18 of the coolant input tank 2 and reaches the vicinity of the rotary shaft 6 of the filtration drum 4. The pump 27 and the pipe 28 pump up the coolant from the tank 25. When the pump 27 is driven, the coolant is injected from the coolant injection pipe 26 toward the inner surface of the filter drum 4 through the pipe 28, and fine chips adhered to the surface of the filter drum 4 are removed. It is configured to be cleaned and removed. Reference numeral 29 denotes a supply pump for supplying the coolant liquid from the tank 25 to the point of use, and a pipe (not shown) is connected to the discharge side 30.
In addition, 31 is an upper cover of the coolant input tank 2, 32
Is an upper cover of the chip dumping unit 12, and 33 is a liquid level gauge.

When the chips are separated from the coolant liquid mixed with the chips by the above-described configuration, the drive source 24 is driven to rotate the shaft of the gear 20, and the shaft is driven through the chain 23 and the gear 5. After rotating the filtration drum 4,
Coolant liquid mixed with chips is supplied from a coolant supply chute 3 of the drum filter type separator 1. The coolant supplied to the coolant supply chute 3 flows between the coolant supply tank 2 and the filter drum 4 via the chute, and the chips are filtered by the filter 8 of the rotating filter drum 4 to be filtered. The chips that have penetrated into the drum 4 and have been filtered out settle on the bottom surface 10 of the coolant input tank 2.

The chips which have settled on the bottom surface 10 of the coolant supply tank 2 are continuously formed on the arcuate section 11 by three crescent-shaped inclined scrapers 9 provided on the outer periphery 1/2 of the rotating filter drum 4. Conveyed. The swarf conveyed into the arcuate section 11 is conveyed by the scraping plate 22 supported in parallel at intervals in the chain 23 sliding on the surface of the swarf conveying plate 13 extending from the rising plate. Then, the swarf is dumped and collected from the swarf dumping unit 12 into a swarf collection box (not shown) arranged below.

On the other hand, the regenerated coolant liquid from which the chips infiltrated into the rotating filter drum 4 are filtered off is formed into an annular opening formed by the annular rotating shaft 7 of the filter drum 4 and the side plate 18 of the coolant input tank 2. From 19 flows out to the tank 25. The regenerated coolant liquid flowing into the tank 25 is supplied from the tank 25 to a use point by a pipe connected to the discharge side of the supply pump 29.

Since the filtration drum 4 is rotating,
Although the filter 8 is unlikely to cause clogging, the pump 27 is driven to inject the regenerated coolant liquid from the coolant injection pipe 26 through the pipe 28 toward the inner surface of the filter drum 4 via the pipe 28, and the filter 27 is applied to the surface of the filter drum 4. If the attached fine chips are washed away, the filter 8 will not be clogged.

[0025]

According to the drum filter type separator of the first aspect of the present invention, the width of the chip conveying conveyor is reduced according to the amount of chips, so that the chip conveying conveyor can be driven by one chain. The chips collected at the bottom of the coolant supply tank are continuously scraped out by the transport blades on the outer periphery of the filtration drum, fall into the conveyor, and are transported and discharged by the conveyor. Further, the transfer blades are used as the outer periphery of the filtration drum.
In the case where a plurality of half-moon-shaped inclined scraper installations are installed in / 2, the filter can be removed without removing the filter drum, and the filter such as filter cloth or wire mesh can be replaced.

According to a second aspect of the present invention, there is provided the drum filter type separator according to the first aspect, wherein the injection pipe of the regenerated coolant filtered from the annular opening of the filter drum faces the filter. However, since the coolant liquid that does not contain chips is provided so as to be able to be sprayed from the inner surface of the filter, the regenerated coolant liquid that has been filtered from the inside of the filter can be continuously sprayed, thereby preventing clogging of the filter.

[Brief description of the drawings]

FIG. 1 shows the transport blade of the present invention as 1/1 of the outer circumference of a filtration drum.
FIG. 2 is an overall plan view of a drum filter type separator provided with two half-moon-shaped inclined scrapers in FIG.

FIG. 2 is a partially cutaway side view of FIG.

FIG. 3 is a partially cutaway front view of FIG. 1;

FIG. 4 is a view as viewed in the direction of arrows AA in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Drum filter type separator 2 Coolant liquid input tank 3 Coolant liquid input chute 4 Filter drum 5, 20 Gear 6 Round rod rotating shaft 7 Annular rotating shaft 8 Filter 9 Half moon inclined scraper 10 Bottom surface 11 Cross-section arc-shaped portion 12 Chip dumping portion 13 Chip Conveying Plate 15 Round Bar Rotation Bearings 16, 18, 21 Side Plate 17 Annular Rotation Bearing 19 Annular Opening Part 22 Scraping Plate 23 Chain 24 Drive Source 25 Tank 26 Coolant Liquid Injection Pipe 27 Pump 28 Pipe 29 Supply Pump 30 Discharge Side 31, 32 Upper cover 33 Liquid level gauge

Continued on the front page (51) Int.Cl. ⁶ Identification code FI B01D 33/58

Claims (2)

[Claims] 1. A gear for suspending a chain is arranged at an end,
A filter drum around which a filter is wound around the circumference of the drum, and a conveying blade is provided on the outer periphery of the drum opposite to the gear, and a round bar rotation shaft is fixed to the end opposite to the gear and an annular rotation shaft is fixed to the gear. A chip transport having a coolant input chute, a part of the bottom surface centered on the gear is formed in a deep cross-sectional arc shape, one of which is extended as a rising plate, and the extended portion is a chip dumping portion. An annular rotary bearing in which the rotary shaft of the filtration drum is provided on the other side plate of the round drum-shaped rotary bearing provided on one side plate of both side plates of the coolant liquid charging tank having the remaining portion formed in an arc-shaped cross section. An annular opening portion is formed by the annular rotating shaft of the filtration drum so as to be rotatable, and the annular rotating shaft of the filtering drum and the annular rotating bearing and side plate of the coolant supply tank for supporting the annular rotating shaft. A receiving tank is arranged on the annular opening side of the A gear is rotatably mounted above the rising plate of the filter drum, which is mounted on the both side plates of the coolant liquid supply tank in the above-described state, and at a position near the chip dumping portion of the chip transport plate. A chain in which a plurality of scraping plates are spaced apart and supported in parallel between the gears of the filtration drum is wrapped around, the driving force from the driving source is received by the gear, and the filtration drum is rotated through the chain. Chips collected at the bottom of the coolant supply tank are transported to the deep section arc-shaped section at the bottom of the coolant supply tank, and a scraping plate supported by a chain is used to cut the deep section arc-shaped section at the bottom of the coolant supply tank. A drum filter type separator which rotates by sliding on a powder conveying plate surface and discharges a chip conveyed to an arc-shaped section having a deep deep bottom from a chip dumping section. 2. An injection nozzle for a coolant liquid filtered from an annular opening portion of a filtration drum is arranged facing the filter.
The drum filter type separator according to claim 1, wherein a coolant liquid containing no chips is sprayed from an inner surface of the filter.