JP3774506B2 - Filtration device for chip conveyor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a filtration device for filtering waste liquid containing waste in a chip conveyor for transporting waste contained in waste liquid.
[0002]
[Prior art]
Conventionally, as this type of filtration device, for example, there is one that filters coolant as waste liquid discharged from a machine tool. That is, this filtration apparatus is provided with the processing tank into which the coolant containing the cutting waste as a waste material is continuously charged. A conveyor main body is provided in the treatment tank for transporting floating cuttings floating on the coolant level and settling cuttings settling below the level to the discharge unit. A rotary drum for filtering the coolant is provided on the upper part of the conveyor body, and a plurality of scrapers are provided on the outer periphery of the rotary drum. When the rotating drum rotates, the floating cutting waste is scraped up by the scraper and is carried to the cutting waste collection position of the conveyor body. Thereafter, the floating cutting waste is conveyed by the conveyor body to the discharge portion.
[0003]
[Problems to be solved by the invention]
However, in the filtering device, when a large amount of sedimented cutting waste is introduced into the upstream side of the rotating drum together with the coolant, it piles up on the conveyor body. That is, the upper end of the pile sinking cutting waste is located above the lower end of the rotating drum. For this reason, when such settled cutting waste is conveyed, the rotating drum and the settled cutting waste interfere with each other, which may damage the rotary drum.
[0004]
Therefore, an object of the present invention is to protect the rotating drum from cutting waste.
[0005]
[Means for Solving the Problems]
  The invention described in claim 1 is provided with an input port into which a waste liquid containing waste is input, a conveyor main body capable of transporting the waste contained in the waste liquid, and provided downstream of the input port. In a chip conveyor provided with a rotating drum for filtering and moving waste contained in the waste liquid to the waste collecting position side of the conveyor body, waste interferes with the rotating drum on the upstream side of the rotating drum. Providing protective members to protectThe protective member is inclined downward toward the downstream side.This is the gist. Therefore, according to the invention described in claim 1,Even if a large amount of waste is input in piles from the input port at once, the waste is gradually compressed, so it is transported without clogging during transportation.The waste is protected by the protective member without interfering with the rotating drum.
[0006]
The gist of the invention described in claim 2 is that the protective member is a filter material capable of passing a waste smaller than a waste of a predetermined size contained in the waste liquid. Therefore, according to the invention described in claim 2, in addition to the action of the invention described in claim 1, the waste liquid is filtered by the protective member before being filtered by the rotating drum.
[0007]
  The invention according to claim 3A guide member for guiding the waste moved by the rotation of the rotating drum to the waste collecting position side of the conveyor body is provided on the downstream side of the rotating drum.This is the gist. Therefore, according to the invention described in claim 3, in addition to the action of the invention described in claim 1 or 2,The waste moved to the downstream side by the rotation of the rotary drum is guided to the waste collection position side of the conveyor main body by the guide member.
[0008]
  The invention according to claim 4The guide member has a guide surface for guiding waste, and the guide surface is inclined downward toward the downstream side of the rotating drum.This is the gist. Therefore, according to the invention described in claim 4,In addition to the operation of the invention described in claim 3, the waste moved by the rotation of the rotating drum is guided to the downstream side of the rotating drum along the inclination direction of the guide surface.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment in which the invention is embodied in a filter device for a chip conveyor used in a machine tool will be described with reference to the drawings.
[0011]
As shown in FIGS. 1 and 2, a conveyor body 2 is disposed in a coolant reservoir 1. The trough 3 of the conveyor body 2 includes a supply part 4 extending horizontally in the lower part, a rising part 5 extending obliquely upward from the downstream end of the supply part 4, and a discharge part 6 extending downward from the upper end of the rising part 5. It consists of and. Sprockets 7a and 7b are rotatably supported in the supply section 4 and the discharge section 6 of the trough 3, and an endless carrier 8 is hung between the sprockets 7a and 7b. A plurality of transport scrapers 9 are arranged outside the transport body 8 at predetermined intervals. And by the drive of the motor which is not shown in figure, the conveyance body 8 rotates around the supply part 4, the raising part 5, and the discharge part 6 in the counterclockwise direction shown in FIG.
[0012]
A filtration device 10 is provided on the supply part 4 of the trough 3 above the carrier 8. The lower opening 11 a of the casing 11 in the filtration device 10 and the upper opening 4 a of the supply unit 4 are communicated with each other. An inlet 11b is formed in the upstream left side wall of the casing 11, and a downstream end of a flange 12 extending into the casing 11 is inserted into the inlet 11b. And the coolant C as waste liquid containing the cutting waste 13 discharged | emitted from the machine tool is poured in in the casing 11 via the gutter | pipe 12. As shown in FIG. The cutting waste 13 is a mixture of sedimented cutting waste 13 a that sinks below the coolant level W in the casing 11 and floating cutting waste 13 b that floats on the coolant level W. The intersecting position of the coolant level W and the conveying body 8 in the rising portion 5 of the conveyor body 2 is a floating cutting waste collection position (waste collection position) α. Moreover, the upper surface of the conveyance body 8 which opposes the downward direction of the collar 12 is the sediment cutting waste collection position β.
[0013]
A first rotating drum 14 on the upstream side and a second rotating drum 15 on the downstream side are arranged in the casing 11 side by side. A bearing 16 is attached to the downstream left side wall of the casing 11, and a drive shaft 17 projecting from the casing 11 is rotatably supported by the bearing 16. A sprocket 18 is fixed to the outer end of the drive shaft 17, and the sprocket 18 is drivingly connected to a motor (both not shown) via a chain. Further, the base ends of the rotary drums 14 and 15 are supported in a cantilever manner on the inner end of the drive shaft 17. Then, by driving the motor, both the rotating drums 14 and 15 are rotated in the direction of arrow A shown in FIG. 2 around the rotation axis K which is the axis of the drive shaft 17.
[0014]
Both rotary drums 14 and 15 are provided with a rotary plate 19 having a circular shape at the base end thereof, and a rotary ring 20 having the same diameter as the rotary plate 19 at the tip end. Eight scrapers 21 are installed between the rotary plate 19 and the rotary ring 20, and the scrapers 21 are arranged at equal intervals on the same circumference. A wiper 21a (shown in FIG. 3) made of NBR (butadiene / acrylonitrile copolymer) is attached to the tip of one of the eight scrapers 21. The wiper 21 a extends along the longitudinal direction of the scraper 21.
[0015]
A cylindrical stainless steel mesh (# 100) 22 is provided inside the scraper 21, and the mesh 22 is screwed to the inner surface of each scraper 21 by bolts and nuts (not shown). The coolant C is filtered when passing through the mesh 22, and the floating cutting waste 13 b is prevented from passing into the first rotary drum 14.
[0016]
As the rotary drums 14 and 15 rotate, the scraper 21 rotates toward the floating cutting recovery position α side under the coolant level W. The floating cutting waste 13b on the upstream side of the rotary drums 14 and 15 is scraped up by the scraper 21 and the wiper 21a and moves to the downstream side.
[0017]
Further, a coolant discharge hole 11c is formed in the side wall of the casing 11 facing the front end side of the rotary drums 14 and 15, and both side edges of the support frame 23 are fixed to both ends of the coolant discharge hole 11c. . The lower end of the support frame 23 is opened, and serves as a coolant discharge passage 23 a communicating with the storage tank 1. And the coolant C which passed both the rotating drums 14 and 15 by the height difference of the coolant level W and the coolant level W1 of the storage tank 1 in the position lower than it is the coolant discharge hole 11c and the coolant discharge passage 23a. It is discharged into the storage tank 1 via
[0018]
A cleaning nozzle 24 is inserted into and fixed to the support frame 23, and its tip extends into the rotary drums 14 and 15. And the coolant C pumped up from the storage tank 1 is injected toward the downstream side direction (arrow B direction shown in FIG. 2) of the rotary drums 14 and 15 over the longitudinal direction of the washing nozzle 24. Yes. The floating cutting waste 13b scraped up to the downstream side of the rotary drums 14 and 15 by this injection pressure is moved to the downstream side of the rotary drums 14 and 15.
[0019]
As shown in FIG. 3, a separating plate 25 is provided in the casing 11 between the rotary drums 14 and 15 and the transport body 8. The left and right edges of the isolation plate 25 are fixed to the left and right inner surfaces of the casing 11 by welding. The isolation plate 25 extends from the upstream side of the first rotating drum 14 to the downstream side of the second rotating drum 15. An upstream end portion of the isolation plate 25 is a curved portion 25 a that is curved around the rotation axis K of the first rotary drum 14. The tip edge of the wiper 21a is slidable on the upper surface of the curved portion 25a. The central portion of the isolation plate 25 is a parallel portion 25 b extending along the transport body 8 in the supply portion 4. Further, the downstream end portion of the isolation plate 25 is an inclined portion 25c that is inclined upward toward the downstream side.
[0020]
A punching plate 26 as a protective member and a filtering material is provided on the upstream side of the first rotating drum 14. The left and right edges of the punching plate 26 are fixed to the left and right inner surfaces of the casing 11 by welding. The lower end edge of the punching plate 26 is fixed to the upstream end of the curved portion 25a of the isolation plate 25 by welding, and the upper end edge is fixed to the upper wall of the casing 11 by bolts and nuts (not shown). A large number of circular holes 26a having a diameter of 2 to 3 mm are formed in the punching plate 26, and the diameter of each circular hole 26a is about 2 to 3 mm. And when the coolant C passes through the circular hole 26a of the punching plate 26, the coolant C containing the cutting waste 13 passes through while being filtered. That is, by the punching plate 26, the cutting waste 13 is divided into the settling cutting waste 13a and the floating cutting waste 13b, and only the floating cutting waste 13b smaller than the settling cutting waste 13a passes through the circular hole 26a of the punching plate 26. It has become. Accordingly, since the settling chips 13a larger than the floating chips 13b pass below the isolation plate 25, they are conveyed by the circumference of the conveyance scraper 9 of the conveyance body 8 without interfering with the mesh 22 of the rotary drums 14 and 15. It is like that.
[0021]
The punching plate 26 is integrated with the isolation plate 25, and is inclined downward toward the downstream side. A space surrounded by the plates 25 and 26 and the transport body 8 is a cutting waste transport space S in which the settled cutting waste 13a is transported. The upstream portion of the cutting waste transport space S is gradually narrowed toward the downstream side by the cooperation of the isolation plate 25 and the punching plate 26. On the other hand, the downstream portion of the cutting waste conveyance space S gradually expands toward the downstream side by the inclined portion 25c of the isolation plate 25. Then, the piled settling cutting waste 13a is gradually compressed on the upstream side of the cutting waste conveying space S.
[0022]
A first guide plate 27 as a guide member is provided on the upper surface of the parallel portion 25b of the isolation plate 25 on the downstream side of the rotary drums 14 and 15. The left and right end edges of the first guide plate 27 are fixed to the left and right inner surfaces of the casing 11 by welding, and the upstream end edge and the downstream end edge are fixed to the upper surface of the parallel portion 25b by welding. A second guide plate 28 as a guide member is provided on the upper surface of the inclined portion 25c of the isolation plate 25 on the downstream side of the second rotating drum 15. The left and right end edges of the second guide plate 28 are fixed to the left and right inner surfaces of the casing 11 by welding, and the upstream end edge and the downstream end edge are fixed to the upper surface of the parallel portion 25b by welding.
[0023]
  The guide plates 27 and 28 are curved on the upstream side thereof along curved portions 27a and 28a that are curved around the rotary drums 14 and 15, and linearly downward as they go downstream from the downstream ends of the curved portions 27a and 28a. Inclined portion 27b inclined to28bIt consists of and. The leading edges of the wipers 21a of the rotary drums 14 and 15 are slidable on the upper surfaces of the curved portions 27a and 28a.
[0024]
The inclined portion 27 b of the first guide plate 27 extends from the vicinity of the lower portion on the downstream side of the first rotating drum 14 to the vicinity of the lower side of the second rotating drum 15. The inclined portion 28 b of the second guide plate 28 extends from the vicinity of the lower portion of the downstream side of the second rotating drum 15 to the vicinity of the lower end of the rising portion 5 of the trough 3 of the casing 11. The floating cutting waste 13b forcedly submerged in the coolant level W by the spray pressure of the cleaning nozzle 24 is moved downstream along the upper surfaces of the inclined portions 27b and 28b. That is, the upper surfaces of the inclined portions 27b and 28b serve as guide surfaces for guiding the floating cutting waste 13b forcedly submerged in the coolant level W to the downstream side.
[0025]
In addition, a backflow prevention plate 29 for preventing the coolant C from returning to the upstream side protrudes toward the second rotating drum 15 at the downstream end edge of the lower opening 11 a in the casing 11. The backflow prevention plate 29 extends in the left-right direction of the lower opening 11a.
[0026]
Next, the operation of the filtration device configured as described above will be described.
When the coolant C from the machine tool is thrown into the casing 11 through the flange 12, the settling cutting waste 13a settles at the settling cutting waste collection position β of the transfer body 8 between the transfer scrapers 9, and the floating cutting waste 13b. Floats on the coolant level W. At this time, when a large amount of cutting waste 13 is charged at a time, the settling cutting waste 13 a is piled up on the transport body 8. In other words, the upper part of the piled settling cutting waste 13 a is positioned higher than the lower end of the first rotating drum 14. Then, as the transport body 8 circulates in this state, when the pile-shaped sedimentary cutting waste 13a is moved downstream, it enters the transport space S, and the sedimentation scraps upstream of the transport space portion S. 13 a hits the side surface of the punching plate 26. Therefore, the settling cutting waste 13a does not interfere with the mesh 22 of the first rotating drum 14.
[0027]
When the pile-shaped sedimentary cutting waste 13a is moved to the downstream side while being in contact with the punching plate 26, the pile-like sedimentary cutting waste 13a has a narrow conveying space S below the upstream side of the first rotating drum 14. It is gradually compressed along with. Since the settled cutting waste 13a is conveyed downstream in this state, clogging does not occur in the conveyance space S. Then, the settled cutting waste 13 a transported to the downstream end of the supply unit 4 is scraped up by the transport scraper 9 of the transport body 8 and discharged from the discharge unit 6.
[0028]
On the other hand, the coolant C is filtered when passing through the punching plate 26, so that only the floating cutting waste 13 b passes through the punching plate 26. That is, when the crant C passes through the punching plate 26, the settling cutting waste 13a and the floating cutting waste 13a are separated. And the coolant C containing the floating cutting waste 13b is further filtered when passing through the rotary drums 14 and 15. That is, the floating cutting waste 13 b does not pass through the rotary drums 14 and 15. The filtered coolant C is discharged into the storage tank 1 through the inner side of the rotary ring 20 of each of the rotary drums 14 and 15, the coolant discharge hole 11c, and the coolant discharge passage 23a. The cleaned coolant C is then circulated to the machine tool.
[0029]
  The floating cutting waste 13b accumulated between the punching plate 26 and the first rotating drum 14 is forcibly submerged below the coolant level W by the scraper 21 of the first rotating drum 14, and the second rotating drum. 15 is scraped to the upstream side. At this time, the scraper located on the upstream side of the first rotating drum 1421Pushes the floating cutting waste 13b to the vertical surface including the rotational axis K of the first rotating drum 14, and after the vertical surface, scrapes the floating cutting waste 13b to the coolant level W. As the first rotating drum 14 rotates, the wiper 21a is slid by the curved portion 25a of the isolation plate 25 and the curved portion 27a of the first guide plate 27, so that floating cutting chips 13b are formed on the upper surfaces of the portions 25a and 27a. Will not remain.
[0030]
  Further, the floating cutting waste 13b is forced to sink below the coolant level W by the scraper 21 of the second rotary drum 15 and is scraped out to the floating cutting waste collection position α. At this time, the scraper located on the upstream side of the second rotary drum 1521Pushes the floating cutting waste 13b to the vertical surface including the rotational axis K of the second rotary drum 15 and, after the vertical surface, scrapes the floating cutting waste 13b to the coolant level W. At this time, as the second rotating drum 15 rotates, the wiper 21a is slid on the curved portion 28a of the second guide plate 28, so that the floating cutting waste 13b does not remain on the upper surface of the curved portion 28a. Raised.
[0031]
Therefore, the floating cutting waste 13b is collected at the floating cutting waste collection position α by the rotary drums 14 and 15. Then, at the floating cutting waste collection position α, the floating cutting waste 13b is scraped up by the transfer scraper 9 of the transfer body 8 that passes through the coolant level W, and is settled to the lower end of the rising portion 5 of the trough 3. It is transported together with the cutting waste 13 a and discharged from the discharge unit 6.
[0032]
Further, when the coolant C passes through the mesh 22 of the first rotating drum 14, the floating cutting waste 13 b is attached to the surface of the mesh 22, and is peeled and cleaned by the injection pressure of the coolant C injected from the cleaning nozzle 24. . At this time, the floating cutting waste 13b may settle below the coolant level W due to the injection pressure of the coolant C. In this case, the settled floating cutting waste 13 b descends along the inclined portion 27 b of the first guide plate 27 and is moved to the curved portion 28 a of the second guide plate 28. Since the inclined portion 27b is inclined downward, the settled floating cutting waste 13b moves reliably without accumulating in the middle of the inclined portion 27b. After that, as already described above, it adheres to the floating cutting waste 13b pushed into each scraper 21 of the second rotary drum 15, and is conveyed downstream.
[0033]
  Further, when the coolant C passes through the mesh 22 of the second rotating drum 15, floating cutting waste 13 b is attached to the surface of the mesh 22.RuHowever, like the first rotating drum 14, the floating cutting waste 13 b is peeled and cleaned by the injection pressure of the coolant C injected from the cleaning nozzle 24. At this time, the floating cutting waste 13b may settle below the coolant level W due to the injection pressure of the coolant C. In this case, the settled floating cutting waste 13 b moves along the inclined portion 28 b of the second guide plate 28 and settles on the transport body 8. Since the inclined portion 28b is inclined downward, the settled floating cutting waste 13b reliably moves without collecting in the middle of the inclined portion 28b.
[0034]
  Therefore, both inclined parts27b,28bThus, the floating cutting waste 13b that has settled below the coolant level W is attached to the sedimented cutting waste 13a that is below the coolant level W. Then, as already described above, the settled floating cutting waste 13 b is scraped up by the transport scraper 9 of the transport body 8 and discharged from the discharge unit 6.
[0035]
Further, when the coolant C passes through the punching plate 26, the settled cutting waste 13a and the floating cutting waste 13b cannot be completely separated. It may flow downstream. In this case, in the same manner as described above, the fine settling chips 13a are attached to the floating cutting chips 13b pushed under the coolant level W by the scraper 21 of both the rotating drums 14 and 15, and each rotating drum 14, 15 is conveyed downstream. And since it moves to the downstream side along the inclined parts 27b and 28b of each guide plate 27 and 28, it finally settles on the conveyance path | route of the conveyance body 8. FIG.
[0036]
When the filtration efficiency is lowered due to clogging or the like of the punching plate 26, the coolant C becomes difficult to pass from the punching plate 26, so that the water level of the coolant level W rises. In this case, the coolant C tends to flow back into the casing 11 from the downstream side of the inclined portion 28 b of the second guide plate 28, but is difficult to flow back by the backflow prevention plate 29. Therefore, it becomes difficult for the floating cutting waste 13b to be returned to the upstream side.
[0037]
  This embodiment has the following effects (1) to (5).
  (1) Heap of settling chips13aEven if it is conveyed near the upstream of the first rotating drum 14, it is applied to the punching plate 26 before hitting the first rotating drum 14. Therefore, settled cutting waste13aAnd the mesh 22 of the first rotating drum 14 do not interfere with each other. That is, since the first rotating drum 14 is protected by the punching plate 26, it is possible to reliably prevent the first rotating drum 14 from being damaged.
[0038]
(2) Since the coolant C is filtered by the punching plate 26 to separate the settling cutting waste 13a and the floating cutting waste 13b, both cutting wastes are more reliably produced than when the punching plate 26 has no filtration function. 13a and 13b can be separated. Therefore, the settling cutting waste 13a that is relatively larger than the floating cutting waste 13b does not hit the mesh 22 of the rotary drums 14 and 15. Moreover, since the coolant C passes through the punching plate 26, the coolant C flows smoothly downstream. Therefore, even if a large amount of coolant C is introduced, it is possible to prevent the water level of the coolant level W from rapidly rising.
[0039]
(3) Since the settling chips 13a thrown in piles are conveyed in a compressed state, they do not cause clogging in the middle of the conveyance path. Therefore, it can prevent that the conveyance efficiency of the sedimentation cutting waste 13a falls.
[0040]
(4) Even when the coolant C sprays from the cleaning nozzle 24 and sinks below the coolant level W on the downstream side of the rotary drums 14 and 15, the suspended floating chips 13b settled down to the guide plates 27, It descends along the inclined portions 27b, 28b at 28. Therefore, the settled floating cutting waste 13b does not collect on the inclined portions 27b and 28b. Therefore, the floating cutting waste 13b can be reliably moved to the floating cutting waste collection position α. Moreover, when the fine sedimentation chips 13a flow into the downstream side of the punching plate 26, the sedimentation chips 13a can be moved along the inclined portions 27b and 28b. Therefore, not only the floating cutting waste 13b but also the fine settling cutting waste 13a can be reliably discharged from the discharge portion 6.
[0041]
(5) Even when the punching plate 26 is clogged or the like and the coolant C tries to flow backward from the downstream side of the inclined portion 28 b of the second guide plate 28, the reverse flow prevention plate 29 makes it difficult to flow backward. Therefore, the floating cutting waste 13b can hardly return to the upstream side, and the recovery efficiency of the floating cutting waste 13b can be prevented from being lowered.
[0042]
The present invention may be configured as follows in addition to the above embodiment.
(A) In the above embodiment, the punching plate 26 having the circular hole 26a is used as the protective member. However, the circular hole 26a may be omitted and a simple plate having no filtration function may be used. In this case, the lower end edge of the plate is separated from the curved portion 25 a of the isolation plate 25 in order to ensure the flow of the coolant C.
[0043]
(B) In the above-described embodiment, the punching plate 26 is inclined downward toward the downstream side. In addition to this, as indicated by a two-dot chain line in FIG. 3, the punching plate 26 a may be orthogonal to the coolant level W.
[0044]
(C) In the above-described embodiment, the rotational direction of the rotary drums 14 and 15 is the arrow A shown in FIG. 2, but the counterclockwise direction may be used, and the floating cutting waste 13 b may be scraped up by the scraper 21.
[0045]
(D) In the above-described embodiment, two rotating drums 14 and 15 are provided, but any number may be used.
(E) In the embodiment, the guide plates 27 and 28 are provided on the downstream side of the rotary drums 14 and 15. In addition to this, a nozzle for injecting coolant may be provided in place of the guide plates 27 and 28, and the floating cutting waste 13b submerged by the injection pressure of this nozzle may be moved downstream.
[0046]
Next, technical ideas other than the claims that can be grasped from the embodiment will be described together with their effects.
(A) An input port into which waste liquid containing waste is input, a conveyor main body capable of transporting waste contained in the waste liquid, and provided downstream of the input port to filter the waste liquid and A chip conveyor provided with a rotating drum for moving the contained waste to a waste collecting position side of the conveyor main body, and the waste moved by the rotation of the rotating drum on the downstream side of the rotating drum. A filtration device in a chip conveyor provided with a guide member for guiding to a waste collection position side. According to this configuration, the waste settled below the waste liquid surface can be reliably moved downstream.
[0047]
(B) The guide member has a guide surface for guiding waste, and the guide surface is inclined downward toward the downstream side of the rotating drum. . According to this configuration, in addition to the effects of the invention described in (A), the waste can be reliably moved along the inclination of the guide surface with a simple structure.
[0048]
【The invention's effect】
  According to the invention of claim 1,Even if a large amount of waste is piled up, it is gradually compressed as the waste is transported downstream, so it can be prevented from clogging during transport,Since the rotating drum and the waste do not interfere with each other, the rotating drum can be protected.
[0049]
  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, since the waste liquid is filtered by the protective member, the filtration efficiency can be further improved.
  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2,Since the waste moved to the downstream side by the rotation of the rotating drum does not accumulate in the middle of the moving path, it can be reliably moved to the downstream side.
[0050]
  According to invention of Claim 4,In addition to the effect of the invention described in claim 3, since it is an inclined surface, it can be moved to the downstream side of the rotating drum along the inclination direction of the guide surface.
[Brief description of the drawings]
FIG. 1 is a plan view of a chip conveyor showing an embodiment of the present invention.
FIG. 2 is a side sectional view of the chip conveyor.
FIG. 3 is an enlarged side sectional view of the chip conveyor.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 2 ... Conveyor main body, 11b ... Input port, 13 ... Cutting waste (waste), 14 ... 1st rotating drum, 15 ... 2nd rotating drum, 26 ... Punching plate (protection member, filter material), 27 ... 1st Guide plate (guide member), 28 ... second guide plate (guide member), C ... coolant (waste liquid), α ... floating cutting waste collection position (waste collection position side).

Claims (4)

An inlet to which waste liquid containing waste is introduced;
A conveyor main body capable of transporting waste contained in the waste liquid;
In a chip conveyor that is provided on the downstream side of the charging port and includes a rotating drum that filters the waste liquid and moves the waste contained in the waste liquid to the waste collection position side of the conveyor body,
A tip conveyor is provided on the upstream side of the rotating drum to protect waste from interfering with the rotating drum , and the protecting member is inclined downward toward the downstream side. Filtration device. The filtration device for a chip conveyor according to claim 1, wherein the protective member is a filtering material capable of passing a waste smaller than a predetermined size of waste contained in a waste liquid. The guide member for guiding the waste moved by rotation of the rotation drum to the waste collection position side of the conveyor body is provided on the downstream side of the rotation drum. Filtering device for chip conveyor. The filtration device for a chip conveyor according to claim 3 , wherein the guide member has a guide surface for guiding waste, and the guide surface is inclined downward toward the downstream side of the rotating drum .

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