JPH09290106A - Filter in chip conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect a rotating drum from cut wastes. SOLUTION: A conveyer main body is arranged in a coolant storing tank. An endless carrier body 8 with a carrier scraper 9 is hung in a trough 3 of the conveyer main body. A filter 10 is provided above the carrier body 8 and a coolant C contg. cut waste 13 is poured into from the upstream side of the casing 11. The first rotating drum 14 and the second rotating drum 15 are successively arranged from the upstream side in the casing 11. A punching plate 26 is provided on the upstream side of the first rotating drum 14. By this constitution, as settled cut waste 13a being larger than floating cut waste 13b passes through below a separation plate 25, there exists no possibility of interfering with both rotating drums 14 and 15.

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 waste liquid containing waste in a chip conveyor for conveying the waste contained in the waste liquid.

[0002]

2. Description of the Related Art Conventionally, as a filtering device of this type,
For example, there is one that filters a coolant as a waste liquid discharged from a machine tool. That is, this filtering device is provided with a processing tank into which a coolant containing cutting waste as waste is continuously introduced. A conveyor main body is provided in the processing tank for transporting floating cutting chips floating on the liquid surface of the coolant and settling cutting chips settling below the liquid surface to the discharge section.
A rotary drum for filtering the coolant is provided above the conveyor body, and a plurality of scrapers are provided on the outer periphery of the rotary drum. Then, when the rotary drum rotates, the floating cutting waste is scraped up by the scraper and carried to the cutting waste collecting position of the conveyor body. After that, the floating cutting wastes are conveyed to the discharging section by the conveyor body.

[0003]

However, in the above-mentioned filtering device, when a large amount of sedimented cutting waste is introduced together with the coolant on the upstream side of the rotary drum, a heap is formed on the conveyor body. That is, the upper end of the piled sedimentation cutting waste is located above the lower end of the rotary drum. Therefore, when such sedimentation cutting waste is conveyed, the rotating drum and the sedimentation cutting waste interfere with each other, which may damage the rotating drum.

Therefore, the present invention has an object to protect the rotary drum from cutting debris.

[0005]

According to a first aspect of the present invention, there is provided a charging port into which a waste liquid containing waste is charged, a conveyor main body capable of conveying the waste contained in the waste liquid, and the charging port. It is provided on the downstream side and filters the waste liquid,
In a chip conveyor equipped with a rotating drum that moves the waste contained in the waste liquid to the waste collection position side of the conveyor main body, the upstream side of the rotating drum protects the waste drum from interfering with the rotating drum. The gist is to provide a protective member that does. Therefore, according to the first aspect of the invention, even if a large amount of waste is thrown in at one time from the throwing port, the waste is protected by the protection member without interfering with the rotary drum.

A second aspect of the present invention is characterized in that the protective member is a filter medium that allows a waste smaller than a predetermined size of waste contained in the waste liquid to pass therethrough. Therefore, according to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the waste liquid is filtered by the protective member before being filtered by the rotary drum.

A third aspect of the present invention is characterized in that the filter medium is inclined downward toward the downstream side. Therefore, according to the invention described in claim 3, according to claim 1
Alternatively, in addition to the effect of the invention described in claim 2, even if a large amount of waste is piled up at one time from the input port and the waste is gradually compressed, the waste is gradually compressed, so that it is not clogged during transportation. Be transported.

According to a fourth aspect of the invention, a guide member is provided downstream of the rotary drum for guiding the waste moved by the rotation of the rotary drum to the waste collection position side of the conveyor body. What is done is the gist. Therefore, according to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, the waste moved to the downstream side by the rotation of the rotary drum is guided by the guide member. Is guided to the waste collection position side of the conveyor body.

According to a fifth aspect of the present invention, the guide member has a guide surface for guiding waste, and the guide surface is inclined downward toward the downstream side of the rotary drum. And Therefore, according to the invention described in claim 5, in addition to the action of the invention described in claim 4, the waste moved by the rotation of the rotary drum is directed to the downstream side of the rotary drum along the inclination direction of the guide surface. Will be guided.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment in which the present invention is embodied in a filter device for a chip conveyor used in a machine tool will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, a conveyor main body 2 is arranged in a coolant storage tank 1. The trough 3 of the conveyor main body 2 has a feed portion 4 that extends horizontally at a lower portion, a rising portion 5 that extends obliquely upward from a downstream end of the feeding portion 4, and a discharge portion 6 that extends downward from an upper end of the rising portion 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. Then, the conveyor 8 is driven by driving a motor (not shown).
Is configured to circulate in the counterclockwise direction shown in FIG. 2 along the supply unit 4, the rising unit 5, and the discharge unit 6.

A filtration device 10 is provided above the carrier 8 and above the supply portion 4 of the trough 3. A lower opening 11a of the casing 11 in the filtering device 10,
The upper opening 4 a of the supply unit 4 is in communication with each other. An inlet 11b is formed on the upstream left side wall of the casing 11,
A gutter 12 extending into the casing 11 is provided at the inlet 11b.
The downstream end of is inserted. Then, the coolant C as a waste liquid containing the cutting waste 13 discharged from the machine tool is
It is adapted to be poured into the casing 11 through the gutter 12. The cutting debris 13 is a settling cutting debris 13 a that sinks below the coolant surface W in the casing 11.
And the floating cutting chips 13b floating on the coolant surface W are mixed. This coolant level W and the conveyor body 2
The position where the rising portion 5 intersects with the carrier 8 is the floating cutting waste collection position (waste collection position) α. Also, gutter 1
The upper surface of the carrier 8 facing below 2 is the sedimentation cutting waste collection position β.

Inside the casing 11, a first rotary drum 14 on the upstream side and a second rotary drum 15 on the downstream side are arranged in parallel. A bearing 16 is attached to the left side wall on the downstream side of the casing 11, and a drive shaft 17 protruding from the casing 11 is rotatably supported on the bearing 16. The sprocket 1 is attached to the outer end of the drive shaft 17.
8 is fixed, and the sprocket 18 is drivingly connected to a motor (neither is shown) via a chain. Further, both rotary drums 14 and 15 are provided at the inner end of the drive shaft 17.
The base end of is supported in a cantilever manner. Then, by driving the motor, both rotary drums 14 and 15 are moved to the drive shaft 17
An arrow A shown in FIG. 2 around a rotation axis K which is the axis of
It is designed to rotate in the direction.

Both rotary drums 14 and 15 have a circular rotary plate 19 at the base end and a rotary plate 1 at the front end.
9 and a rotating ring 20 having the same diameter. Eight scrapers 21 are provided between the rotary plate 19 and the rotary ring 20.
And the scrapers 21 are arranged at equal intervals on the same circumference. One of the eight scrapers 21 has a NBR (butadiene
Wiper 21a made by acrylonitrile copolymer (Fig. 3)
) Is installed. The wiper 21 a extends along the longitudinal direction of the scraper 21.

A cylindrical stainless 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). There is. Then, the coolant C is filtered when passing through the mesh 22, so that the floating cutting debris 13 b does not pass inside the first rotary drum 14.

As the rotary drums 14 and 15 rotate, the scraper 21 rotates below the coolant surface W toward the floating cutting recovery position α side. Then, the floating cutting debris 13b on the upstream side of both the rotating drums 14 and 15 is scraped by the scraper 21 and the wiper 21.
It is picked up by a and moved to the downstream side.

Further, a coolant discharge hole 11c is formed in the side wall of the casing 11 facing the front ends of both the rotating drums 14 and 15.
Both sides 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 23a communicating with the storage tank 1. The coolant level W and the coolant level W of the storage tank 1 located below the coolant level W
Due to the difference in height from 1, the coolant C that has passed through both rotary drums 14 and 15 is discharged into the reservoir 1 through the coolant discharge hole 11c and the coolant discharge passage 23a.

A cleaning nozzle 24 is fixedly inserted through the support frame 23, and its tip extends into the rotary drums 14 and 15. Then, the coolant C pumped up from the storage tank 1 extends in the longitudinal direction of the cleaning nozzle 24 in the downstream direction of the rotary drums 14 and 15 (direction of arrow B shown in FIG. 2).
It is designed to be jetted toward. The floating cutting scraps 13b scraped up to the downstream side of the rotary drums 14 and 15 by this injection pressure are moved to the downstream side of the rotary drums 14 and 15.

As shown in FIG. 3, the both rotary drums 1 are
An isolating plate 25 is provided in the casing 11 between the conveyors 4 and 15 and the carrier 8. Both left and right edges of the isolation plate 25 are fixed to both left and right inner side surfaces of the casing 11 by welding. The isolation plate 25 extends from the upstream side of the first rotary drum 14 to the downstream side of the second rotary drum 15. The upstream end of the isolation plate 25 is a curved portion 25a that is curved around the rotation axis K of the first rotary drum 14. This curved portion 25a
The tip edge of the wiper 21a is slidable on the upper surface of the. Further, the central portion of the isolation plate 25 is a parallel portion 25b extending along the carrier 8 in the supply unit 4. Furthermore, the downstream end of the isolation plate 25 is an inclined portion 25c that is inclined upward toward the downstream side.

On the upstream side of the first rotary drum 14, a punching plate 26 is provided as a protective member and a filtering material. Both left and right edges of the punching plate 26 are fixed to both left and right inner side surfaces of the casing 11 by welding. The lower 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 edge of the punching plate 26 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.
mm. When the coolant C passes through the circular hole 26a of the punching plate 26, the coolant C including the cutting chips 13 passes while being filtered. That is, by the punching plate 26, the cutting scraps 13 are set as the sedimentation cutting scraps 13a and the floating cutting scraps 13b.
The floating cutting chips 13b, which are smaller than the sedimentation cutting chips 13a, pass through the circular holes 26a of the punching plate 26. Therefore, the floating cutting waste 13b
Since the larger settling chips 13a pass below the isolation plate 25, the mesh 22 of both rotary drums 14 and 15
It is configured to be conveyed by the circulation of the conveying scraper 9 of the conveying body 8 without interfering with.

The punching plate 26 is integrated with the separating plate 25 and is inclined downward toward the downstream side. A space surrounded by both plates 25 and 26 and the carrier 8 is a cutting waste transport space S in which the sedimented 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 transport space S is gradually expanded toward the downstream side by the inclined portion 25c of the isolation plate 25. The heap-shaped sedimentation cutting waste 13a is gradually compressed on the upstream side of the cutting waste transport space S.

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. Both left and right edges of the first guide plate 27 are fixed to both left and right inner side surfaces of the casing 11 by welding, and upstream and downstream edges thereof 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 rotary drum 15. Both left and right edges of the second guide plate 28 are fixed to both left and right inner side surfaces of the casing 11 by welding, and upstream and downstream edges thereof are fixed to the upper surface of the parallel portion 25b by welding.

The guide plates 27, 28 have curved portions 27a, 28a curved along the circumference of the rotary drums 14, 15 on the upstream side, and downward as they extend from the downstream ends of the curved portions 27a, 28a toward the downstream side. It is composed of inclined portions 27b and 27b which are linearly inclined. The rotary drums 14, 1 are provided on the upper surfaces of the curved portions 27a, 28a.
The front edge of the wiper 21a of No. 5 is slidable.

The inclined portion 27b of the first guide plate 27 extends from near the downstream lower portion of the first rotary drum 14 to near the lower side of the second rotary drum 15. The inclined portion 28b of the second guide plate 28 extends from near the downstream lower portion of the second rotary drum 15 to near the lower end of the rising portion 5 of the trough 3 of the casing 11. Then, the floating cutting chips 13b forcibly sunk into the coolant surface W by the jet pressure of the cleaning nozzle 24 are inclined portions 27b and 28, respectively.
It is adapted to be moved downstream along the upper surface of b. That is, the upper surfaces of the inclined portions 27b and 28b serve as guide surfaces for guiding the floating cutting chips 13b forcibly submerged in the coolant surface W to the downstream side.

A backflow prevention plate 29 for preventing the coolant C from returning to the upstream side is provided at the downstream edge of the lower opening 11a of the casing 11 for the second rotary drum 1.
It is projected toward 5. The backflow prevention plate 29 extends in the left-right direction of the lower opening 11a.

Next, the operation of the filtering device constructed as described above will be described. When the coolant C from the machine tool is thrown into the casing 11 through the gutter 12, the sedimentation cutting wastes 13 a are transferred between the transfer scrapers 9 and the transfer body 8 between the transfer scrapers 9.
Settled at the settling cutting waste collection position β, and the floating cutting waste 13b floats on the coolant surface W. At this time, when a large amount of cutting waste 13 is thrown in at one time, the settled cutting waste 13a becomes a heap on the carrier 8. That is, the upper part of the heap-shaped sedimentation cutting waste 13 a is located higher than the lower end of the first rotary drum 14. When the heap-shaped sedimentation cutting chips 13a are moved to the downstream side as the carrier 8 is circulated in this state, the heaps of sedimentation cutting chips 13a enter the conveyance space S and are settled in the upstream side of the conveyance space section S. 13a is punching plate 2
Hit the side of 6. Therefore, the sedimentation cutting waste 13a is the first
It does not interfere with the mesh 22 of the rotating drum 14.

When the heap-shaped sedimentation cutting chips 13a are moved to the downstream side while contacting the punching plate 26, the heap-shaped sedimentation cutting chips 13a are moved to the first rotary drum 14.
As the transport space S becomes narrower on the upstream side below, the compression is gradually performed. In this state, the sedimentation cutting waste 13a is transported to the downstream side, so that the transport space S is not clogged. Then, the sedimentation 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.

On the other hand, the coolant C is filtered when passing through the punching plate 26, so that only the floating cutting waste 13b passes through the punching plate 26. That is, when the clant C passes through the punching plate 26, the sedimentation cutting chips 13a and the floating cutting chips 13a are separated. Then, the coolant C containing the floating cutting debris 13b is further filtered when passing through both the rotating drums 14 and 15. That is, the floating cutting debris 13b does not pass through the rotary drums 14 and 15. The filtered coolant C is discharged to the storage tank 1 through the inside of the rotary ring 20 of each of the rotary drums 14 and 15 and the coolant discharge hole 11c and the coolant discharge passage 23a. Then, the cleaned coolant C is circulated to the machine tool.

The floating cutting chips 13b accumulated between the punching plate 26 and the first rotary drum 14 are
The scraper 21 of the rotary drum 14 forcibly sinks below the coolant level W, and the second rotary drum 15
Is scratched upstream. At this time, the first rotary drum 1
The scraper 23 located on the upstream side of No. 4 has floating cutting waste 13b up to the vertical surface including the rotation axis K of the first rotating drum 14.
, And floating scraps 13b are scraped up to the coolant liquid surface W after passing the vertical surface. First rotating drum 14
The wiper 21a is rotated by the separation plate 25.
Since it is slid on the curved portion 25a and the curved portion 27a of the first guide plate 27, the floating cutting waste 13b does not remain on the upper surfaces of the respective portions 25a and 27a.

Further, the floating cutting debris 13b is forcibly forced by the scraper 21 of the second rotary drum 15 into the coolant liquid level W.
Is sunk below and is scraped out to the floating cutting waste collection position α. At this time, the scraper 23 located on the upstream side of the second rotary drum 15 pushes the floating cutting debris 13b to the upright surface including the rotation axis K of the second rotating drum 15, and when it passes the upright surface, the floating cutting debris is passed. 13b is the coolant level W
Up to. At this time, as the second rotary drum 15 rotates, the wiper 21a of the second rotary drum 15 is rotated by the second guide plate 28.
Since it is slid on the curved portion 28a, the floating cutting scraps 13b are not scraped on the upper surface of the curved portion 28a and are scraped up.

Therefore, by both rotating drums 14 and 15,
The floating cutting waste 13b is collected at the floating cutting waste collecting position α. 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 passing through the coolant surface W, and settled to the lower end of the rising portion 5 of the trough 3. It is conveyed together with the cutting waste 13a and is discharged from the discharge section 6.

When the coolant C passes through the mesh 22 of the first rotary drum 14, the floating cutting debris 13b adheres to the surface of the mesh 22 but is separated by the spray pressure of the coolant C sprayed from the cleaning nozzle 24. To be washed. At this time, the floating cutting debris 13b may settle below the coolant surface W due to the injection pressure of the coolant C. In this case, the settled floating cutting debris 13b descends along the inclined portion 27b of the first guide plate 27 and is moved to the curved portion 28a of the second guide plate 28. Inclined part 2
Since 7b is inclined downward, the settled floating cutting debris 13b reliably moves without accumulating in the middle of the inclined portion 27b. Then, as described above, the floating cutting scraps 1 pushed into the scrapers 21 of the second rotary drum 15 have already been described.
3b is attached and is transported to the downstream side.

Further, the coolant C is the second rotary drum 15
When passing through the mesh 22 of the same mesh 22
The floating cutting chips 13b are attached to the surface, but like the first rotary drum 14, the floating cutting chips 13b are washed by the cleaning nozzle 24.
It is peeled off and washed by the spray pressure of the coolant C sprayed from. At this time, the floating cutting debris 13b may settle below the coolant surface W due to the injection pressure of the coolant C.
In this case, the settled floating cutting debris 13b moves along the inclined portion 28b of the second guide plate 28 and settles on the carrier 8. Since the inclined portion 28b is inclined downward, the settled floating cutting debris 13b reliably moves without accumulating in the middle of the inclined portion 28b.

Therefore, due to the two inclined portions 27a and 28a,
The floating cutting chips 13b that have settled below the coolant level W are attached to the settling chips 13a below the coolant level W. Then, as described above, the settled floating cutting debris 13b is scraped up by the transport scraper 9 of the transport body 8 and discharged from the discharge portion 6.

Further, the coolant C is the punching plate 2
When passing through 6, sedimentation cutting waste 13a and floating cutting waste 13a
b cannot be completely separated from each other, and for example, needle-like fine sedimentation cutting chips 13a pass through the punching plate 26,
It may flow into the downstream side. In this case, as in the case described above, the fine settling chips 13a are removed by the scrapers 21 of both rotary drums 14 and 15 from the coolant surface W.
It is attached to the floating cutting waste 13b pushed down and is transported to the downstream side of each rotary drum 14, 15. Then, since the guide plates 27, 28 move to the downstream side along the inclined portions 27b, 28b of the guide plates 27, 28, the guide plates 27, 28 finally settle on the conveyance path of the conveyance body 8.

When the punching plate 26 becomes clogged and the filtration efficiency decreases, it becomes difficult for the coolant C to pass through the punching plate 26.
The water level will rise. In this case, the coolant C tries to flow back into the casing 11 from the downstream side of the inclined portion 28b of the second guide plate 28, but the backflow prevention plate 29 makes it difficult for the coolant to flow back. Therefore, floating cutting waste 1
It becomes difficult for 3b to be returned to the upstream side.

This embodiment has the following effects (1) to (5). (1) Heap-shaped sedimentation cutting waste 13b is the first rotary drum 1
4 is conveyed near the upstream side of the first rotating drum 14
It is applied to the punching plate 26 before hitting. Therefore, the settling chips 13b and the mesh 22 of the first rotating drum 14 do not interfere with each other. That is, since the first rotary drum 14 is protected by the punching plate 26, it is possible to reliably prevent the first rotary drum 14 from being damaged.

(2) Since the coolant C is filtered by the punching plate 26 to separate the settling cutting chips 13a and the floating cutting chips 13b from each other, it is more reliable than when the punching plate 26 has no filtering function. Both cutting chips 13a and 13b can be separated. Therefore, the settling chips 1 that are relatively larger than the floating chips 13b
3a does not hit the mesh 22 of both rotary drums 14 and 15. The coolant C is the punching plate 26.
Therefore, the coolant C smoothly flows to the downstream side. Therefore, even if a large amount of the coolant C is injected, it is possible to prevent the water level of the coolant liquid surface W from rising rapidly.

(3) Since the sedimented cutting waste 13a that has been loaded in a heap shape is conveyed in a compressed state, it does not cause clogging in the middle of the conveying path. Therefore, the sedimentation cutting waste 13
It is possible to prevent the transport efficiency of a from decreasing.

(4) Due to the injection pressure of the coolant C sprayed from the cleaning nozzle 24, even if the liquid is settled below the coolant level W on the downstream side of the rotary drums 14 and 15, the settled floating cutting chips 13b are guided by the respective guides. The plates 27 and 28 descend along the inclined portions 27b and 28b. for that reason,
The settled floating cutting debris 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 collecting position α.
In addition, the fine settling chips 13a are not included in the punching plate 26.
When it flows into the downstream side of the
Can be moved along the inclined portions 27b and 28b. Therefore, not only the floating cutting debris 13b but also the fine settling cutting debris 13a can be reliably discharged from the discharge portion 6.

(5) Even if the coolant C tries to flow back from the downstream side of the inclined portion 28b of the second guide plate 28 due to clogging of the punching plate 26, the backflow prevention plate 29 makes it difficult for the coolant C to flow back. Therefore, the floating cutting waste 13b
Can be prevented from returning to the upstream side, and the efficiency of collecting the floating cutting debris 13b can be prevented from decreasing.

The present invention may be configured as follows in addition to the above embodiment. (A) In the above-described embodiment, the punching plate 26 having the circular hole 26a is used as the protective member, but the circular hole 26a may be omitted and a simple plate having no filtering function may be used. Then, in this case, in order to ensure the flow of the coolant C, the lower end edge of the plate is separated from the curved portion 25 a of the isolation plate 25.

(B) In the above embodiment, the punching plate 26 is inclined downward toward the downstream side. In addition to this, as shown by a two-dot chain line in FIG. 3, it may be orthogonal to the coolant surface W of the punching plate 26a.

(C) In the above embodiment, both rotary drums 1
The rotation direction of 4, 15 is indicated by the arrow A in FIG. 2, but it may be set in the opposite direction so that the scraps 21b are scraped up by the scraper 21.

(D) In the above embodiment, the rotary drum 1
Although four and 15 are provided, any number may be used. (E) In the above embodiment, the guide plates 27 and 28 are provided on the downstream side of the rotary drums 14 and 15, respectively. In addition to this, a nozzle for injecting a coolant may be provided instead of the guide plates 27 and 28, and the floating cutting waste 13b that has settled by the injection pressure of this nozzle may be moved to the downstream side.

Next, technical ideas other than the claims that can be understood from the above embodiment will be described together with their effects. (A) An input port into which a waste liquid containing waste is input, a conveyor main body capable of conveying the waste contained in the waste liquid, and a downstream side of the input port, which filters the waste liquid and converts it into waste liquid. In a chip conveyor provided with a rotating drum that moves the contained waste to the waste collection position side of the conveyor body, the waste moved by the rotation of the rotating drum on the downstream side of the rotating drum of the conveyor body A filtering device in a chip conveyor provided with a guide member for guiding to the waste collection position side. With this configuration, it is possible to reliably move the waste settled below the waste liquid surface to the downstream side.

(B) The guide member has a guide surface for guiding the waste, and the guide surface is inclined downward toward the downstream side of the rotary drum. Filter device in. According to this configuration,
In addition to the effect of the invention described in (A), the waste can be reliably moved along the inclination of the guide surface with a simple structure.

[0048]

According to the invention described in claim 1, since the rotary drum and the waste do not interfere with each other, the rotary drum can be protected.

According to the invention of claim 2, claim 1
In addition to the effect of the invention described in (1), since the waste liquid is filtered by the protection 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, even if a large amount of waste is piled up and thrown in, the waste is transported to the downstream side. As it is gradually compressed, clogging can be prevented during transportation.

According to the invention of claim 4, claim 1
In addition to the effects of the invention described in any one of claims 3 to 3,
Since the waste moved to the downstream side by the rotation of the rotary drum does not accumulate in the middle of the movement route, it can be reliably moved to the downstream side.

According to the invention set forth in claim 5, according to claim 4,
In addition to the effect of the invention described in (1), since it is an inclined surface, it can be moved to the downstream side of the rotary drum along the inclination direction of the guide surface.

[Brief description of 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]

2 ... Conveyor body, 11b ... Inlet, 13 ... Cutting waste (waste), 14 ... 1st rotary drum, 15 ... 2nd rotary drum, 26 ... Punching plate (protective member, filter material),
27 ... 1st guide plate (guide member), 28 ... 2nd guide plate (guide member), C ... Coolant (waste liquid),
α: Floating cutting waste collection position (waste collection position side).

Claims (5)

[Claims] 1. A charging port into which a waste liquid containing waste is charged, a conveyor main body capable of conveying the waste contained in the waste liquid, and a downstream side of the charging port, which filters the waste liquid, In a chip conveyor equipped with a rotating drum that moves the waste contained in the waste liquid to the waste collection position side of the conveyor body, upstream of the rotating drum protects the waste drum from interfering with the rotating drum. Filtering device in a chip conveyor provided with a protective member for 2. The filtration device for a chip conveyor according to claim 1, wherein the protection member is a filtration material that can pass a waste smaller than a predetermined size of waste contained in the waste liquid. 3. The filtering device for a chip conveyor according to claim 1, wherein the filtering material is inclined downward toward the downstream side. 4. A guide member is provided on the downstream side of the rotary drum for guiding the waste moved by the rotation of the rotary drum to the waste collection position side of the conveyor body. A filtration device for a chip conveyor according to claim 3. 5. The filtration in a chip conveyor according to claim 4, wherein the guide member has a guide surface for guiding the waste, and the guide surface is inclined downward toward the downstream side of the rotary drum. apparatus.