JP2008279557A - Cutting chip sorting and discharging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting chip sorting and discharging device which enhances safety during the maintenance, reduces a maintenance load when changing any consumable, enhances flexibility of an installation layout, and extends the lifetime of an oil seal. <P>SOLUTION: A filtering drum 8 has water discharge pipes 8n on both ends of an opening part. A ring-shaped metal bearing 8c and an oil seal 8d to be used for mounting the water discharge pipes 8n on a conveyor frame 2 are arranged outside the conveyor frame 2. The metal bearing 8c and the oil seal 8d are pressed by an outer cover 8f for a filtering drum bearing via an O-ring 8e, and the filtering drum 8 is turnably attached to the conveyor frame 2. Further, the filtering drum 8 can be attachably/detachably divided into a plurality of portions in the axial direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention conveys a turbid coolant containing metal chips such as iron and aluminum discharged from a machine tool and metal chips such as grinding scraps when performing metal processing such as cutting and grinding by a machine tool. It is thrown into the turbid coolant storage tank provided at the lower horizontal part of the frame, and only the chips are captured by the hinge belt installed in the conveyor frame, and then scooped up and carried out of the turbid coolant storage tank. Chips that are collected by the endless circulation track created by the belt and collected by the filtration drum that is rotatably installed and recovered from the turbid coolant storage tank and reused by machine tools The present invention relates to a sorting and unloading device.

  When machining a metal material with a machine tool, to cool the cutting jig, grinding jig, work material, etc., an aqueous solution in which a lubricant is dissolved, or a coolant such as lubricating oil ( Coolant) is used. And the used turbid coolant containing the chip etc. discharged | emitted from a machine tool is normally collect | recovered only by the chip | tip separating discharge apparatus, and is refine | purified to the level which can be reused.

  FIG. 6 schematically shows a conventionally used chip sorting and unloading apparatus 10 with the side frame 12i on the near side being in a transparent state. The chip sorting / discharging device 10 includes a turbid coolant storage tank 12h into which a turbid coolant D containing swarf discharged from the machine tool M is charged, and an endless end installed in the conveyor frame 12 in a circular state. And a hinge belt 14. The conveyor frame 12 includes a tail frame 12a, a horizontal floor frame 12b, a return side inclined frame 12e, a discharge unit frame 12f, a metal frame continuous with the conveying side inclined frame 12g, and two side frames 12i that block both side surfaces thereof. The endless hinge belt 14 is configured so as to be separated from and covered with the endless hinge belt 14. In addition, the member which attached | subjected the reference code | symbol 17 is a drive cover installed as needed, when reducing the noise of a drive source.

  The chips K contained in the turbid coolant D charged into the turbid coolant reservoir 12h are scooped up by the hinge belt 14 along the partition plate 16 to the outside of the turbid coolant reservoir 12h in the conveyor frame 12, and hinged. From the chip discharge port B located below the upper circumferential end portion 14c of the belt 14, it is carried out to the chip collection box F or the like. A drive sprocket R that transmits power to the hinge belt 14 is connected to a drive motor (not shown) at the upper circumferential end 14c of the hinge belt 14, while the hinge belt 14 is connected to the return side horizontal. A cylindrical member 15 is provided in the tail part A that rotates in the circumferential direction from the part 14b to the transport side horizontal part 14a.

  Further, inside the conveyor frame 12, a cylindrical filter drum around which a filter 18a made of a nonwoven fabric for filtering the turbid coolant D stored in the turbid coolant reservoir 12h and then discharging it to the outside is wound around 18 is provided, and the filtered coolant, that is, the purification coolant C is discharged to the purification coolant storage tank E provided outside the conveyor frame 12 through the drain port 18b and once stored in the purification coolant storage tank E. It is configured so that it can be reused later by the machine tool M or the like.

On the other hand, residual chips that do not pass through the filtration drum 18 are scooped up again by the hinge belt 14 and discharged from the chip discharge port B. Since such a filter drum 18 gradually clogs, such a filter drum 18 is provided with a liquid jetting means 19 for purifying the filter, and a cleaning coolant C is jetted from the liquid jetting means 19 and adhered to the surface of the filter 18a. The powder K is blown away (for example, refer patent document 1).
Japanese Patent Laying-Open No. 2005-230943 (FIG. 2)

  However, such a conventional chip sorting and discharging apparatus 10 is provided on the vertical surfaces on both sides of the filtration drum 18 because the bearing mechanism for pivotally installing the filtration drum 18 is installed inside the conveyor frame 12. The diameter of the drainage outlet 18b is small, and even if the purification coolant C is completely removed from the conveyor frame 12 from the drainage outlet 18b, the conveyor belt horizontal side 14a remains immersed in the turbid coolant D and the conveyor is operating. The problem of not knowing whether it was stopped was pointed out.

  Further, even if the purification coolant C is completely removed from the conveyor frame 12, the conveyance side horizontal portion 14a remains immersed in the turbid coolant D, so that it can be added to the conveyor frame 12 by exchanging workpieces or tools in the machine tool. If you cannot do it, you need to change from safety shoes to boots, which is inconvenient.

  Further, three types of consumables associated with the filtration drum 18, that is, a filtration filter 18 a, a metal bearing (not shown) for pivoting the filtration drum 18, Of the oil seals that prevent the turbid coolant D from leaking out of the conveyor frame 12, only the filtration filter 18a could be replaced from the inspection window 12d of the side frame 12i, but a metal bearing or oil seal, Alternatively, in order to replace both of them, it is necessary to remove the filtration drum 18 from the main body of the conveyor frame 12, and since the chips come into direct contact with the oil seal, the life of the oil seal is short and the maintenance burden is large.

  Moreover, removing the filter drum 18 and reattaching it after the maintenance work involves pulling out the hinge belt 14 and removing a part of the conveyor frame 12, which requires a considerable amount of time. It was causing a decline. Further, in order to extract and maintain the filtration drum 18 from the conveyor frame 12 in the lateral direction, the entire length of the filtration drum 18 and an extra space for maintenance are required on the side of the conveyor frame 12. The degree of freedom of layout was low. Such a conventional chip sorting and discharging apparatus 10 requires four oil seals per unit due to its structure, leading to an increase in cost.

  Further, the conventional chip sorting and discharging apparatus 10 has a structure in which the filter drum 18 is clogged with its operation due to the structure of filtering with a filter 18a made of a nonwoven fabric or the like although it has the liquid jetting means 19. Therefore, it was necessary to frequently replace the filter 18a.

  Accordingly, a first object of the present invention is to provide a chip sorting / discharging device with improved safety during maintenance.

  The second object of the present invention is to eliminate the need to remove the filtration drum from the conveyor body when replacing the ring-shaped metal bearing and oil seal, which are consumables attached to the filtration drum, and the filtration filter. This is to provide a chip sorting and discharging device with reduced pressure.

  Furthermore, a third object of the present invention is to provide a chip sorting / discharging device that reduces the maintenance space required for removing and maintaining the filtration drum in the lateral direction of the conveyor case and increases the degree of freedom in installation layout. That is.

  In addition, a fourth object of the present invention is to provide a chip sorting / discharging device having a long oil seal life.

  Accordingly, the invention according to claim 1 circulates in the turbid coolant storage tank provided in the lower horizontal portion of the conveyor frame into which the turbid coolant containing the chips discharged from the machine tool is charged, and the conveyor frame. A hinge belt having scrapers at predetermined intervals to travel, a drum filter sprocket meshing with the hinge belt, and a cylindrical filter in which the drum filter sprocket is fixed to one of the openings and the filter is wound around A filtration drum, a drainage outlet for discharging the clarified coolant obtained by filtering the turbid coolant through the filtration drum, and a chip provided on the head of the conveyor frame by scooping up the chips by a hinge belt. In the chip separation and discharge device for discharging to the outside from the powder discharge port, the filtration drum has drain pipes at both ends of the opening. A ring-shaped metal bearing and an oil seal used for attaching the drain pipe to the conveyor frame are disposed outside the conveyor frame, and the metal bearing and the oil seal are interposed via an O-ring. By being pressed by the outer cover for the filtration drum bearing, the filtration drum is rotatably mounted on the conveyor frame, and the filtration drum can be divided into a plurality of parts in the axial direction and detachable. Thus, the above-described problems are solved.

  Further, in the invention according to claim 2, in addition to the configuration of the invention according to claim 1, a chip intrusion prevention plate for closing a gap between the drain pipe and the conveyor frame is fixed to the drain pipe. The above-described problems are further solved.

  The chip in the present invention has a broad meaning as a general term for metal scrap discharged from a machine tool, such as grinding scrap discharged from a grinding machine device as well as metal cutting waste discharged from a cutting device or the like. Are used.

  According to the first aspect of the present invention, the turbid coolant storage tank provided in the lower horizontal portion of the conveyor frame into which the turbid coolant containing the chips discharged from the machine tool is charged, and circulates in the conveyor frame. A hinge belt having scrapers at predetermined intervals to travel, a drum filter sprocket meshing with the hinge belt, and a cylindrical filter in which the drum filter sprocket is fixed to one of the openings and the filter is wound around A filtration drum, a drainage outlet for discharging the clarified coolant obtained by filtering the turbid coolant through the filtration drum, and a chip provided on the head of the conveyor frame by scooping up the chips by a hinge belt. In the chip separation / discharge device for discharging to the outside from the powder discharge port, the filtration drum has drain pipes at both ends of the opening. A ring-shaped metal bearing and an oil seal used to attach the drain pipe to the conveyor frame are disposed outside the conveyor frame, and the metal bearing and the oil seal are provided with an O-ring. The filtration drum is rotatably mounted on the conveyor frame by being pressed by the outer cover for the filtration drum bearing, and the filtration drum can be divided into a plurality of parts in the axial direction and detachable. As a result, the following specific effects are produced.

(1) When the purification coolant is completely removed from the drain port, the conveyor side horizontal surface of the hinge belt is exposed, and the operation state of the conveyor can be visually checked. Therefore, safety during maintenance is improved.
(2) Since all of the consumable filtration filters, metal bearings and oil seals can be replaced without removing the filtration drum from the conveyor frame, maintenance work time is greatly reduced and the operating rate of the equipment is reduced. (Operating time per unit time) is improved.
(3) The filtration drum is divided into a plurality of parts in the axial direction and is detachable, so that the maintenance space required for maintenance by removing the filtration drum from the conveyor case in the lateral direction can be reduced. The degree of freedom in the installation layout of the sorting and discharging device is improved. Further, by making the divided lengths at both ends the same when dividing, common parts are used regardless of the left and right and the conveyor width, and the number of parts can be reduced. Further, when a part of the filtration drum is damaged, only the damaged part needs to be replaced, and the burden of repair cost is reduced.

  Moreover, according to the invention which concerns on Claim 2, in addition to the said effect which the invention which concerns on Claim 1 show | plays, the chip intrusion prevention board which plugs up the clearance gap between a drain pipe and a conveyor frame is being fixed to the drain pipe. This prevents a large amount of chips from coming into contact with the oil seal, thus extending the life of the oil seal.

  The present invention includes a turbid coolant storage tank provided in a lower horizontal portion of a conveyor frame into which turbid coolant containing chips discharged from a machine tool is charged, and a predetermined interval of circulating running in the conveyor frame. A hinge belt having a scraping plate, a drum filter sprocket meshing with the hinge belt, a cylindrical filter drum in which the drum filter sprocket is fixed to one of the openings and a filter is wound around, and the turbidity A drainage outlet for discharging the coolant obtained by filtering the coolant through a filtration drum to the outside of the conveyor frame, and scooping up the chips by a hinge belt to the outside from the chip discharge outlet provided at the head of the conveyor frame. In the chip sorting and discharging apparatus for discharging, the filtration drum has drain pipes at both ends of the opening, and the drain pipe A ring-shaped metal bearing and an oil seal used for mounting on the conveyor frame are arranged outside the conveyor frame, and the metal bearing and the oil seal are used for a filtration drum bearing via an O-ring. A chip sorting / discharging device in which the filtration drum is rotatably mounted on a conveyor frame by being pressed by an outer cover, and the filtration drum is divided into a plurality of parts in an axial direction and is detachable. As long as it can improve safety during maintenance, greatly reduce maintenance time, reduce maintenance burden, improve equipment operation rate, increase the degree of freedom of installation layout, and extend the life of consumables Any specific embodiment can be used.

  Further, in the present invention, as an endless conveyor provided in a circulating state in the conveyor frame, a hinge conveyor that can efficiently scoop chips from turbid coolant is adopted, but other types such as a scraper conveyor It is possible to apply the technical idea of the present invention even if it is a conveyor.

  Hereinafter, a chip sorting and discharging apparatus 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a chip sorting / discharging device 1 according to an embodiment of the present invention, and FIG. 2 is a side view 2i of a conveyor frame 2 of the chip sorting / discharging device 1 shown in FIG. FIG. 3 is a cross-sectional view in which the hinge belt 4 is omitted, and FIG. 4 is a cross-sectional view taken along the line III-III in FIG. It is an assembly drawing of the IV section. FIGS. 5A and 5B are perspective views showing a filter drum 8 that can be divided and attached, which is applied to the chip sorting and discharging apparatus 1. FIG. 5A shows a state at the time of division, and FIG. 5B shows a state at the time of assembly. Yes.

  FIG. 1 is a perspective view of a chip sorting and discharging apparatus 1 according to the present invention. FIG. 2 is a schematic side view showing the side frame 2i of the conveyor frame 2 in a transparent state in order to show the arrangement and size of the filtration drum 8, which is a characteristic part of the present invention, and the relationship with the hinge belt 4. It is.

As shown in FIG. 2, the chip sorting and discharging apparatus 1 circulates in the conveyor frame 2 and a turbid coolant storage tank 2 h into which turbid coolant containing chips discharged from a machine tool (not shown) is charged. And an endless hinge belt 4 provided in the state. The conveyor frame 2 includes a tail frame 2a, a horizontal floor frame 2b, a return-side vertical frame 2c, a discharge frame 2f, a metal frame continuous with the conveyance-side inclined frame 2g, and two side frames 2i that block both side surfaces thereof. The endless hinge belt 4 is configured so as to be separated from and covered with the endless hinge belt 4. 1 and 2 is a drive equipped to reduce the noise of the drive source and prevent the operator from reaching the operating part of the head of the conveyor frame 2. It is a cover. As a result, safety is significantly improved as compared with the conventional one.

  Chips contained in the turbid coolant charged into the turbid coolant reservoir 2h are scooped up by the hinge belt 4 along the partition plate (not shown) to the outside of the turbid coolant reservoir 2h in the conveyor frame 2, It is carried out from a chip discharge port B1 located below the upper peripheral end 4c of the hinge belt 4 to a chip collection box (not shown). A drive sprocket R1 that transmits power to the hinge belt 4 is connected to a drive motor (not shown) at the upper circumferential end 4c of the hinge belt 4, while the hinge belt 4 is conveyed from the return side horizontal portion 4b. A cylindrical member 5 is provided in the tail portion A1 that rotates circumferentially toward the side horizontal portion 4a.

  Further, in the conveyor frame 2, a cylindrical filter drum 8 (FIG. 3) around which a filter filter 8a made of a nonwoven fabric for filtering the turbid coolant stored in the turbid coolant reservoir 2h and then discharging it to the outside is wound. The filtered coolant, that is, the purification coolant is discharged to the purification coolant storage tank (not shown) provided outside the conveyor frame 2 through the drain port 8b, and once into the purification coolant storage tank. It is comprised so that it can be reused with a machine tool etc. after having been stored. Further, an inspection window 2 d for inspecting the properties of the filtration drum 8 is provided on the side frame 2 i of the conveyor frame 2.

  On the other hand, residual chips that do not pass through the filtration drum 8 are scooped up again by the hinge belt 4 and discharged from a chip discharge port B1 provided at the head of the conveyor frame 2. Such a filter drum 8 gradually clogs the filter 8a. Therefore, the filter is provided with a liquid jetting means 9 for purifying the filter, and the cleaning powder is sprayed from the liquid jetting means 9 and adhered to the surface of the filter 8a. Is blown away.

  Next, the structure of the filtration drum 8 which is the main part of the present invention and the assembly structure to the conveyor frame 2 will be described with reference to FIGS. The cylindrical filtration drum 8 has drain pipes 8n at both ends of the opening, and a ring-shaped metal bearing 8c and an oil seal 8d used to attach the drain pipe 8n to the conveyor frame 2 are provided. , Arranged outside the conveyor frame 2. The metal drum 8c and the oil seal 8d are pressed by the outer cover 8f for bearing of the filtration drum 8 through the O-ring 8e, so that the filtration drum 8 is rotatably mounted on the conveyor frame 2. . The O-ring 8e is fitted into an O-ring housing groove 8i provided at the outer peripheral end of the metal bearing 8c so as to cut a corner, thereby improving the sealing performance between the outer cover 8f and the metal bearing 8c.

  The outer cover 8f is pressed by a screw screwed inside the conveyor frame 2 by allowing bolts 8g to loosen from the outside of the outer cover 8f through a plurality of through holes 8h drilled at equal intervals on the outer peripheral wall of the outer cover 8f. This is performed by screwing into a screw hole 2k screwed into the plate 2j. The metal bearing 8c is provided with screw holes 8o at two locations, and the bolt 8p prevents the outer cover 8f and the metal bearing 8c from sliding.

The assembly structure of the bearing portion of the filtration drum 8 will be described with reference to FIGS. 3 and 4. About half of the axial width of the drain pipe 8n protrudes from the drum outlet 8t (see FIG. 1) of the conveyor frame 2. At this time, the chip intrusion prevention plate 8j is substantially flush with the conveyor frame 2. Next, the oil seal 8d is fitted to the drain pipe 8n so as to be in close contact with the chip intrusion prevention plate 8j. Further, a metal bearing 8c is fitted on the outside so as to be in close contact with the oil seal 8d.

  Since the oil seal 8d seals the space formed by the metal bearing 8c and the drain pipe 8n, one of the two oil seals conventionally required is reduced. The metal bearing 8c is provided with screw holes 8o for screwing with the outer cover 8f at two locations.

  An O-ring housing groove 8i provided so as to cut a corner is provided at the outer peripheral end of the metal bearing 8c, and an O-ring 8e is fitted therein and covers the entire bearing structure on the outside thereof. An outer cover 8f is screwed to the conveyor frame 2 with bolts 8g. The upper half of the drain port 8b of the outer cover 8f is covered with a drain port cover 8r.

  Further, a chip intrusion prevention plate 8j is fixed to the drain pipe 8n so as to be almost flush with the conveyor frame 2 by welding means such as welding so as to be in close contact with the outer surface of the convex portion 8k. The chips contained in the turbid coolant in the conveyor frame 2 are prevented from entering the bearing structure composed of the oil seal 8d and the metal bearing 8c. Furthermore, sprocket teeth 8l of the drum filter sprocket are fixed so as to be in close contact with the inner surface of the convex portion 8k. The sprocket teeth 8l are provided only on one side of the drum outlet 8t (see FIG. 1) of the conveyor frame 2, and a ring-shaped plate 8q having the same diameter as the root circle of the drum filter sprocket is fixed on the opposite side. Has been.

  The outer cover 8f on the drum outlet 8t side is provided with an opening larger than the inner hole diameter of the drain pipe 8n, and the upper half of the opening is closed on both sides by the drain cover 8r. Further, as shown in FIG. 3, the diameters of the chip intrusion prevention plate 8j and the sprocket teeth 8l which are the maximum diameter of the filtration drum 8 are slightly smaller than the opening of the conveyor frame 2, so that the outer cover 8f Can be pulled out together with the filtration drum 8. Therefore, the replacement of the filtration filter 8a can be performed very easily.

  Further, since the bearing structure is provided on the outside of the conveyor frame 2, the diameter of the drainage port 8b can be increased to the innermost limit of the filtration drum 8, so that the storage reference position is clear from the comparison between FIG. 2 and FIG. L can be pulled down below the conveying side horizontal portion 4a of the hinge belt 4. As a result, when the coolant is completely removed from the conveyor frame 2, the conveyance side horizontal portion 4a of the hinge belt 4 is exposed and can be visually observed. Therefore, the operation state of the conveyor can be visually observed, and safety during maintenance is improved.

  Moreover, as shown in FIG. 5, the drain pipes 8n provided at both ends of the opening of the filtration drum 8 are, for example, a drum rod 8s divided into three parts of a center part L2 and left and right end parts L1 and L3. The drum connecting member 8u is spaced apart to form a cylindrical birdcage-shaped drum. Therefore, when the filtration drum 8 is pulled out of the conveyor frame 2 in the horizontal direction for maintenance, conventionally, a maintenance space for the entire length of the filtration drum 8 and the extra width is required on the side of the conveyor frame 2. According to the example, maintenance is possible in a maintenance space of approximately one third of the total length of the filtration drum 8 and a slight margin. In this embodiment, the number of divisions of the filtration drum 8 is 3, but the number of divisions can be increased according to the maintenance space desired by the user without being limited to this, and the number of divisions is 2. It is also possible to do. Furthermore, in this embodiment, the bolts 8v and nuts 8w are used for connecting the drum connecting members 8u, but other connecting means can be used as long as they can be reliably connected and can be easily removed. is there.

  As shown in FIG. 3, a filtration filter 8a is wound around the outer periphery of the filtration drum 8, and is fastened and fixed to the drain pipe 8n by a large-diameter hose band 8m. The filter drum 8 has a bilaterally symmetrical bearing structure except for the presence or absence of the sprocket teeth 8l described above. Therefore, the oil seal 8d, the metal bearing 8c, and the O-ring 8e can be used without worrying about the left and right, and the part management burden is reduced.

The chip sorting and discharging apparatus of the present invention can divide the filtration drum into a plurality of parts in the axial direction, so that the maintenance space can be reduced, so that the degree of freedom in the installation layout of the apparatus is increased and the metal from the outside of the conveyor frame is increased. Consumables such as bearings and O-rings can be replaced, greatly reducing the maintenance burden. Moreover, since the conveyance side horizontal part of the hinge belt is exposed from the turbid coolant, the safety at the manufacturing site can be improved. Furthermore, since the bearing mechanism is not exposed to chips, the industrial applicability is extremely high, such as the life of consumables is prolonged.

The perspective view of the chip separation discharge apparatus of this invention. The schematic side view of the chip separation discharge apparatus of this invention. FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG. 2. FIG. 4 is an assembly drawing of the IV part of FIG. 3. The perspective view of the filtration drum of the chip separation discharge apparatus of this invention. The side view of the conventional chip classification discharge apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 10 ... Chip classification discharge device 2, 12 ... Conveyor frame 2a, 12a ... Tail part frame 2b, 12b ... Horizontal floor frame 2c ... Return side vertical frame 2d, 12d ··· Inspection window 12e ··· return side inclined frames 2f, 12f ··· discharge portion frames 2g, 12g ··· conveyance side inclined frames 2h, 12h ··· turbid coolant storage tanks 2i, 12i ··· side frames 2j ... Screw plate 2k ... Screw holes 4, 14 ... Hinge belts 4a, 14a ... Conveyance side horizontal parts 4b, 14b (of the hinge belt) ... Return side horizontal parts 4c (of the hinge belt) , 14c (upper hinge end) of the hinge belt 5, 15 ... cylindrical member 16 ... partition plate 7, 17 ... drive cover 8, 18 ... filtration drum 8 , 18a: Filtration filters 8b, 18b ... Drainage port 8c ... Metal bearing 8d ... Oil seal 8e ... O-ring 8f ... Outer cover 8g ... (For outer cover screw installation) Bolt 8h ... Through-hole 8i ... O-ring storage groove 8j ... Chip intrusion prevention plate 8k ... Projection 8l (of the drain pipe) ... Sprocket teeth 8n (of the drum filter sprocket) ...・ Drain pipe 8m ... Hose band 8o ... (Metal bearing) screw hole 8p ... (Metal bearing fixing) bolt 8q ... Plate 8r ... Drain port cover 8s ... Drum rod 8t ... Drum outlet 8u ... Drum connecting member 8v ... (drum connecting) bolt 8w ... (drum connecting) nuts 9, 19 ... Liquid ejecting means A, A1 Tail B, B1 ... Chip discharge port C ... Purification coolant D ... Cloudy coolant E ... Purification coolant storage tank F ... Chip collection box K ... Chip L・ ・ Storage reference position M ・ ・ ・ Machine tools R, R1 ・ ・ ・ Drive sprocket

Claims (2)

A turbid coolant storage tank provided in a lower horizontal portion of a conveyor frame into which turbid coolant containing chips discharged from a machine tool is charged, and a scraper plate that circulates in the conveyor frame at predetermined intervals. A hinge belt, a drum filter sprocket that meshes with the hinge belt, a cylindrical filter drum in which the drum filter sprocket is fixed to one of the openings and a filter is wound around, and the turbid coolant is filtered A drain outlet for discharging the cleaning coolant obtained by filtration to the outside of the conveyor frame, and a chip for scooping up the chips by a hinge belt and discharging the chips to the outside from the chip outlet provided in the head of the conveyor frame. In the separation discharge device,
The filter drum has drain pipes at both ends of the opening, and a ring-shaped metal bearing and an oil seal used to attach the drain pipe to the conveyor frame are disposed outside the conveyor frame. And
The metal bearing and the oil seal are pressed by a filter drum bearing outer cover via an O-ring, so that the filter drum is rotatably mounted on a conveyor frame, and
A chip sorting and discharging device, wherein the filtration drum is divided into a plurality of parts in an axial direction and is detachable.   The chip sorting and discharging device according to claim 1, wherein a chip intrusion prevention plate for closing a gap between the drain pipe and the conveyor frame is fixed to the drain pipe.

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