JP4583403B2 - Chip sorting and discharging device - Google Patents

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. 8 schematically shows a conventionally used chip sorting and unloading apparatus 10 with the front side frame 12i in a transparent state.
The chip sorting and discharging device 10 is a turbid coolant storage tank 12h into which a turbid coolant D containing chips discharged from the machine tool M is charged, and an endless shape installed in a circulating state in the conveyor frame 12. And a hinge belt 14 on which scrapers 14f are fixed at predetermined intervals.
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 14 c of the belt 14, the belt 14 is carried out to a 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 temporarily stored in the purification coolant storage tank E. After that, it can be reused 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 scoops up the chips K in the process in which the hinge belt 14 travels from the conveying side horizontal portion 14a toward the head G. Need to be relaxed.
Therefore, a large installation space is required, and the problem that it may not be possible to install due to the layout of the machine tool has been pointed out.

  Further, as shown in FIG. 3A as an enlarged view of the rising position J of the hinge belt 14, the steep slope portion 14i of the hinge belt 14 extends from below the water surface of the turbid coolant D to the head G of the chip sorting and discharging device 10. In order to stand up suddenly, a problem has been pointed out that the amount of the chips K that can be captured by the scraper 14f is small and the efficiency of collecting chips is low.

Further, as shown in the enlarged view of the upper bending position I of the hinge belt 14 in FIG. 8, the angle bending portions 12j are formed at two or three positions at the position where the conveyor frame 12 moves from the conveying side inclined frame 12g to the discharge portion frame 12f. Therefore, the conveyance path height H at the upper bending position I is H + α.
Therefore, when trying to make the rising angle of the hinge belt 14 steep, the chip K escapes to the transport path upper space O at the transport path height H + α, and the scraping plate 14f passes under the chip K. Thus, it has been pointed out that the chip K that has escaped to the upper space O of the transport path cannot be transported and the chip recovery efficiency is lowered.

  Accordingly, an object of the present invention is to improve the efficiency of collecting chips by capturing the chips even when the water level of the turbid coolant exceeds the horizontal part of the hinge belt on the conveying side, and reducing the size of the apparatus. An object of the present invention is to provide a chip sorting and discharging device that narrows the installation space.

  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, a drum filter sprocket meshing with the hinge belt, and a cylindrical filter drum in which the drum filter sprocket is fixed to one of the openings and the filter is wound around. A purification coolant discharge port for discharging the purification coolant obtained by filtering the turbid coolant with a filtration drum to the outside of the conveyor frame; and the chips provided by scooping up the chips by a hinge belt on the head of the conveyor frame A chip sorting and discharging device for discharging to the outside from a discharge port, wherein the hinge belt includes the conveyor frame. A gentle slope portion having a predetermined length and angle extending to a position exceeding the maximum liquid level of the turbid coolant in an upward trajectory toward the upper horizontal portion of the hinge belt from the turbid coolant storage tank As described above, it has a steep slope portion from the upper horizontal portion to the upper horizontal portion, and even when the water surface of the turbid coolant exceeds the horizontal portion on the conveyance side of the hinge belt, it is possible to catch chips on the gentle slope portion of the hinge belt. It solves the problem.

  According to a second aspect of the invention, in addition to the configuration of the first aspect of the invention, the hinge belt has a vertical surface portion in a downward trajectory from the head of the conveyor frame toward the meshing portion with the drum filter sprocket. By having this, the above-described problems are further solved.

  Furthermore, in the invention according to claim 3, in addition to the configuration of the invention according to claim 1 or 2, the distance between the ceiling of the conveyor frame and the hinge belt is changed from the steep slope portion of the hinge belt to the upper horizontal portion. By being constant over time, the above-described problems are further solved.

  The chip in the present invention is 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. Used in meaning.

  Further, the hinge belt which is the main component of the present invention is a steel plate pressed in accordance with the chain pitch, made into a belt shape and connected through the shaft, connected according to the size of the device, It is made to travel endlessly and conveys the chips that are the object to be conveyed.

  Furthermore, the angles of the “slow slope part” and “steep slope part” in the present invention are not particularly limited, but taking into account the downsizing of the apparatus and the chip recovery efficiency in a trade-off relationship, for example, The angle of the gentle slope portion can be set to 30 degrees, and the angle of the steep slope portion can be set to 70 degrees.

  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 circulating in the conveyor frame. A hinge belt having scrapers at predetermined intervals, 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 drum, a purification coolant discharge port for discharging the purification coolant obtained by filtering the turbid coolant through the filtration drum, and a chip drainage provided at the head of the conveyor frame by scooping up the chips by a hinge belt. Chip sorting and discharging device that discharges to the outside from the outlet, where the hinge belt is turbid in the conveyor frame -In the ascending trajectory toward the upper horizontal part of the hinge belt from within the coolant reservoir, it has a gentle slope part of a predetermined length and angle extending to a position exceeding the maximum liquid level of the turbid coolant, and the upper horizontal part from this gentle slope part The device has a steep slope toward the center, and even if the water surface of the turbid coolant exceeds the horizontal side of the hinge belt transport side, chips can be captured on the gentle slope of the hinge belt, thereby reducing the size of the device. Since the installation space can be narrowed, the degree of freedom in layout when installing can be increased.

  In addition, the hinge belt has a gentle slope with a predetermined length and angle extending from the turbid coolant storage tank of the conveyor frame to a position exceeding the highest liquid level of the turbid coolant in the rising trajectory toward the upper horizontal portion of the hinge belt, i.e., By having a gentle slope at the position where the turbid coolant rises from below the water surface to the water surface, even if the water surface of the turbid coolant exceeds the horizontal side of the hinge belt transport side, more of the turbid coolant on the gentle slope of the hinge belt. Since the chips can be scooped up and captured by the scraper, the efficiency of collecting the chips can be improved.

  Further, according to the invention according to claim 2, in addition to the effect of the invention according to claim 1, the hinge belt has a vertical surface portion in the descending track toward the meshing portion with the drum filter sprocket from the head of the conveyor frame. As a result, the dead space existing below the inclined portion of the conveyor frame is eliminated, so that the installation space can be further reduced.

  Furthermore, according to the invention according to claim 3, in synergy with the effect of the invention according to claim 1 or 2, the distance between the ceiling of the conveyor frame and the hinge belt is higher than the steep slope portion of the hinge belt. By being constant over this, there is no space in the upper part of the conveyance path where the chips escape from the scraping operation of the scraper, so that the efficiency of collecting the chips can be further improved.

  The present invention relates to 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 scraping at a predetermined interval of circulating running in the conveyor frame. A hinge belt having a 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 the filter is wound around, and a turbid coolant. Purified coolant discharged through the filtration drum is discharged to the outside of the conveyor frame, and the chips are scooped up by the hinge belt and discharged from the chip discharge port provided at the head of the conveyor frame. Chip separation and discharge device with hinge belt in turbid coolant storage tank of conveyor frame In the ascending trajectory toward the upper horizontal portion of the hinge belt, it has a gentle slope portion of a predetermined length and angle extending to a position exceeding the maximum liquid level of the turbid coolant, and from the gentle slope portion toward the upper horizontal portion. Even if the water surface of the turbid coolant exceeds the horizontal part of the hinge belt on the conveyance side, it captures the chips on the gentle slope part of the hinge belt, improving the efficiency of collecting chips and reducing the size of the device. As long as the installation space is narrowed, the specific mode may be any.

  Further, in the present invention, a hinge belt capable of efficiently scooping up chips from the turbid coolant is adopted as an endless conveyor that circulates in the conveyor frame, but other types of conveyors such as a scraper conveyor are used. Even so, the technical idea of the present invention can be applied.

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 skeleton state (watermark state) of the conveyor frame 2 of the chip sorting / discharging device 1 shown in FIG. 3 is an enlarged side view of hinge belt rising positions J1 and J shown in FIGS. 2 and 6, and FIG. 4 is a chip sorting and discharging apparatus 1 shown in FIG. It is detail drawing of the meshing part of this hinge belt 4 and a drum filter sprocket.
FIG. 5 is a cross-sectional view showing the cross section taken along line VV in FIG. 2 with the hinge belt 4 omitted.
FIG. 6 is an assembly view of a portion VI in FIG.
FIG. 7 is a perspective view showing the filtration drum 8 of the chip sorting and discharging apparatus 1.

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

As shown in FIGS. 1 and 2, the chip sorting and discharging apparatus 1 includes a turbid coolant storage tank 2 h into which turbid coolant containing chips discharged from a machine tool (not shown) is charged, and a conveyor frame 2. An endless hinge belt 4 is provided in a circular 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.

Chips contained in the turbid coolant introduced into the turbid coolant reservoir 2h are scooped up by the hinge belt 4 along the partition plate 6 to the outside of the turbid coolant reservoir 2h in the conveyor frame 2, and the hinge belt 4 Is discharged from a chip discharge port B1 located below the upper peripheral end 4c 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 in the circumferential direction toward the side horizontal portion 4a.

Further, a cylindrical filtration drum 8 wound with a filtration filter 8a made of a nonwoven fabric for filtering the turbid coolant stored in the turbid coolant storage tank 2h in the conveyor frame 2 and then discharging it to the outside (see FIG. 5). The filtered coolant, that is, the purification coolant C1, is discharged through a drain port 8b to a purification coolant storage tank (not shown) provided outside the conveyor frame 2, and temporarily stored in the purification coolant storage tank. It is configured so that it can be reused on a machine tool or the like.
The conveyor frame 2 is provided with an inspection window 2d for inspecting the properties of the filtration drum 8.

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 the discharge port B1 provided in the head G1 of the conveyor frame 2.
Since such a filtration drum 8 is gradually clogged, a liquid ejection means 9 for purifying the filter is provided inside the filtration drum 8, and a purification coolant is sprayed from the liquid ejection means 9 and adhered to the surface of the filtration filter 8a. The chips are blown away.

Next, the ascending trajectory of the endless circulation trajectory of the hinge belt 4 which is one of the technical features of the present invention will be described.
The hinge belt 4 of the present invention is on the ascending trajectory from the turbid coolant storage tank 2h provided at the lower horizontal portion of the conveyor frame 2 toward the upper horizontal portion 4g of the hinge belt 4 from below the water surface of the turbid coolant D1 to the water surface. It has a gentle slope portion 4h having a predetermined length and angle at the raised position, and a steep slope portion 4i from the gentle slope portion 4h toward the upper horizontal portion 4g.

By adopting such a configuration, in the conventional chip sorting and discharging apparatus 10, as shown in FIG. 3A, when the turbid coolant D reaches near the maximum liquid level Lmax of the turbid coolant storage tank 12h, Since the hinge belt 14 suddenly rises from the water surface of the turbid coolant D, the scraper 14f can capture only a small amount of the chips K, and the chip collection efficiency is poor.
Therefore, in order to obtain practical chip collection efficiency, the rising angle of the steep slope portion 14i must be approximately 60 degrees or less, which has become a bottleneck for downsizing the chip sorting and discharging device.

On the other hand, in the chip sorting and discharging apparatus 1 of the present invention, as shown in FIG. 3B, even when the turbid coolant D1 reaches near the maximum liquid level Lmax of the turbid coolant storage tank 2h, the hinge belt 4 has a gentle slope portion 4h having a predetermined length and an angle α at a position where the turbid coolant D1 rises from below the water surface to the water surface, so that a large amount of chips K can be captured by the scraping plate 4f. Even if the rising angle of the steep slope 4i is about 70 degrees, sufficient chip collection efficiency can be achieved.
Furthermore, by raising the rising angle of the steep slope 4i from the conventional 60 degrees to 70 degrees, the effect of draining the turbid coolant adhering to the side wings of the hinge belt 4 and the scraping plate 4f is also achieved.
In the present invention, the angle α of the gentle slope portion 4h is 30 degrees.

In FIGS. 3A and 3B, the members denoted by reference numerals N and N1 are extremely useful for preventing the turbid coolants D and D1 from overflowing from the turbid coolant reservoirs 12h and 2h. This is an overflow detector.
Further, the partition plates 16 and 6 that support the hinge belts 14 and 4 from the inside of the endless circulation track on the inclined side of the conveying side of the hinge belts 14 and 4 are not shown in FIG.

The descending track of the endless circulating track of the hinge belt 4, which is one of the further technical features of the present invention, will be described.
As shown in FIGS. 2 and 4, the chip sorting / discharging device 1 of the present invention has a downward trajectory in which the hinge belt 4 heads from the head G <b> 1 of the conveyor frame 2 to the meshing portion with the sprocket teeth 8 l of the drum filter sprocket. It has a vertical surface portion, that is, a return-side vertical portion 4e in FIGS.
By adopting such a configuration, the dead space that inevitably existed below the inclined portion of the conveyor frame is eliminated, so that the installation space can be made extremely narrow.

Further, since a circular arc having a center angle of 90 degrees is formed between the return side vertical portion 4e and the return side horizontal portion 4b of the hinge belt 4, the drum having sprocket teeth 8l meshing with the hinge belt 4 on this circular arc track. A cylindrical filtration drum 8 in which a filter sprocket is fixed to one of the openings and a filtration filter 8a is wound around can be used.
As a result, it is possible to use the filtration drum 8 having a larger diameter than the conventional chip sorting and discharging device, and the purification efficiency by the filtration drum 8 is improved.

  Further, in the present invention, the chain lift prevention rail 8u is provided on the inner side of the circular track contacting the return side horizontal portion 4b of the hinge belt 4, and the opening of the drum outlet 8t provided by cutting out the side frame 2i of the conveyor frame 2 is provided. By closing the gap between the end and the chain lifting prevention rail 8u (P portion in FIG. 4), the tooth separation between the sprocket tooth 8l and the roller 4j of the hinge belt 4 is improved.

Further, a chain swing prevention rail 8v is provided inside the circular track that contacts the return side vertical portion 4e of the hinge belt 4, and the opening end of the drum outlet 8t provided by cutting out the side frame 2i of the conveyor frame 2 and the chain swing are provided. By closing the gap of the movement preventing rail 8v (Q portion in FIG. 4), the sprocket teeth 8l and the roller 4j of the hinge belt 4 are smoothly meshed with each other.
In addition, since the chain lifting prevention rail 8u and the chain swing prevention rail 8v are provided, the circulation path of the hinge belt 4 is not disturbed when the filtration drum 8 is taken out of the conveyor frame 2 during maintenance. Work burden can be reduced.

As shown in the enlarged view of FIG. 2, the chip sorting and discharging apparatus 1 according to the present invention has a constant interval between the hinge belt 4 and the conveyor frame 2 from the steep slope portion 4 i to the upper horizontal portion 4 g of the hinge belt 4. Therefore, since the space above the conveying path where the chips K escape from the scraping operation of the scraping plate 4f is eliminated, the recovery efficiency of the chips K is further improved.
2 is a drive cover equipped to reduce the noise of the drive source and to prevent the operator's hand from reaching the operating portion of the head G1 of the conveyor frame 2. is there.
As a result, safety is significantly improved as compared with the conventional one.

Next, the structure of the filtration drum 8 loaded in 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 bearing 8c and the oil seal 8d are fixed to the conveyor frame 2 by being pressed by the bearing outer cover 8f of the filtration drum 8 through the O-ring 8e.
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.

About the assembly structure of the bearing part of the filtration drum 8 mentioned above, the assembly figure is shown in FIG.
About half of the axial width of the drain pipe 8n protrudes from a drum outlet 8t (see FIG. 4) provided by cutting out 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 required so far 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 is provided at the outer peripheral end of the metal bearing 8c so as to cut a corner, and an O-ring 8e is fitted therein, and an outer cover 8f is formed so as to cover the entire bearing structure on the outside thereof. Is screwed to the conveyor frame 2 by bolts 8g.
The upper half of the drain port 8b of the outer cover 8f is covered with a drain port cover 8r.

  In this embodiment, the outer cover 8f and the metal bearing 8c are bolted, and the inner peripheral side of the ring-shaped metal bearing 8c slides with the drain pipe 8n. However, the metal bearing is fixed to the drain pipe 8n. And it is also possible to make it the structure which the outer peripheral side surface of the metal bearing and the inner peripheral side surface of the outer cover 8f slide.

The drain pipe 8n has a chip intrusion prevention plate 8j that is in contact with the outer surface of the convex portion 8k by means of welding or the like, so that the notch hole of the conveyor frame 2, that is, substantially the surface of the drum outlet 8t. It is fixed so that it may become one, and it suppresses that the chip | tip contained in the turbid coolant in the conveyor frame 2 penetrate | invades into the bearing structure comprised from the oil seal 8d and the metal bearing 8c mentioned above. .
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 tooth 8l is provided only on one side of the drum outlet 8t (see FIGS. 1 and 4) of the conveyor frame 2, and the opposite side is a ring having the same diameter as the root circle of the sprocket tooth 8l. A plate 8q is fixed.

The outer cover 8f provided outside the two drum outlets 8t 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. It is peeling off.
Further, as shown in an enlarged view in FIG. 5, the diameters of the chip intrusion prevention plate 8 j and the sprocket teeth 8 l which are the maximum diameter part of the filtration drum 8 are slightly smaller than the drum outlet 8 t of the conveyor frame 2. Therefore, if the outer cover 8f is removed, the entire filtration drum 8 can be pulled out.
Therefore, the replacement of the filtration filter 8a can be performed very easily.

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

As shown in FIG. 7, the drain pipes 8n provided at both ends of the opening of the filtration drum 8 are spaced apart by a drum rod 8s to constitute a cylindrical drum.
A filtration filter 8a is wound around the outer periphery of the filter 8a, and is fastened and fixed to the drain pipe 8n by a large-diameter hose band 8m (see FIG. 5).
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 can be reduced.

The chip sorting and discharging apparatus of the present invention can make the installation space extremely small without reducing the efficiency of collecting chips, and the structure in which the frame facing the inclined portion of the conveyor frame rises vertically. Therefore, since the inspection window installed on the upper part of the filtration drum is generally rectangular, the effect is great, such as reducing the work load of internal inspection and replacement of the filtration filter.
Furthermore, the newly developed chip separation and discharge technology and coolant cleaning technology using the chip separation and discharge device according to the present invention is merely an improvement of the working environment in the factory in the trend of increasing interest in environmental protection and countermeasures. In addition, it has a great influence on high precision, high efficiency, and waste disposal outside the factory, and its industrial applicability is extremely high.

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. (A) is conventional, (b) is an enlarged view of the rising position of the chip sorting and discharging apparatus of the present invention. The figure which shows meshing | engagement of the filtration drum and hinge belt of the chip classification discharge device of this invention. FIG. 5 is a schematic cross-sectional view when cut along line VV in FIG. 2. FIG. 6 is an assembly drawing of the VI part in FIG. 5. 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.

DESCRIPTION OF SYMBOLS 1,10 ... Chip separation 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 and 12f ··· discharge portion frames 2g and 12g · · · conveyance side inclined frames 2h and 12h · · · turbid coolant storage tanks 2i and 12i ··· side frames 2j ... Screw plate 12j ... Angle bending part 2k ... Screw hole 4, 14 ... Hinge belt 4a, 14a ... (Transport side horizontal part of hinge belt) 4b, 14b ... (Hinge belt) Of the return side horizontal portion 4c, 14c ... (upper hinge end) 4e ... (on the hinge belt) return side vertical portion 4f, 14f ... Scraping plate 4g, 14g ... (Upper horizontal part of hinge belt) 4h ... Slow slope part (of hinge belt) 4i, 14i ... Steep slope part 4j (of hinge belt) Roller 5, 15 ... Cylindrical member 6, 16 ... Partition plate 7, 17 ... Drive cover 8, 18 ... Filtration drum 8a, 18a ... Filtration filter 8b, 18b ...・ Drain port 8c ... Metal bearing 8d ... Oil seal 8e ... O-ring 8f ... Outer cover 8g ... (For outer cover screwing) Bolt 8h ... Through hole 8i ... O Ring storage groove 8j ... Chip intrusion prevention plate 8k ... (Drain pipe) convex part 8l ... Sprocket teeth 8n ... Drain pipe 8m ... Hose band 8o ... (Metal base) Screw hole 8p (for fixing metal bearing) 8q ... Plate 8r ... Drain outlet cover 8s ... Drum bar 8t ... Drum outlet 8u ... Chain lifting prevention rail 8v・ ・ ・ Chain swing prevention rails 9, 19 ・ ・ ・ Liquid injection means A, A1 ・ ・ ・ Tail part B, B1 ・ ・ ・ Chip discharge port C, C1 ・ ・ ・ Purification coolant D, D1 ・ ・ ・ Cloudy Coolant E ... Purification coolant reservoir F ... Chip collection box G, G1 ... Head (of the conveyor frame) H ... Distance between the conveyor frame and the hinge belt (at the upper bent position) I, I1 ... Upper bending position (of hinge belt) J, J1 ... Rising position (of hinge belt) K ... Chip Lmin ... Storage reference position Lma x ... Maximum liquid level (within conveyor frame) M ... Machine tool N, N1 ... Emergency overflow detector O ... Transport path upper space P ... Drum outlet and chain lift prevention rail Q ... Gap between the drum outlet and the chain swing prevention rail R, R1 ... Drive sprocket

Claims (3)

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 at a predetermined interval for circulating and running in the conveyor frame A hinge belt, a drum filter sprocket that meshes with the hinge belt, a cylindrical filter drum having the drum filter sprocket fixed to one of the openings and a filter filter wound around the filter belt, and the turbid coolant as a filter drum A purification coolant discharge port for discharging the purification 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 discharge port provided at the head of the conveyor frame. A powder separation and discharge device,
The hinge belt has a gentle slope portion with a predetermined length and angle extending from the turbid coolant reservoir of the conveyor frame to a position exceeding the highest liquid level of the turbid coolant in an upward trajectory toward the upper horizontal portion of the hinge belt. And having a steep slope portion from the gentle slope portion toward the upper horizontal portion,
A swarf separating and discharging apparatus characterized in that swarf can be captured at a gentle slope portion of the hinge belt even when the water surface of the turbid coolant exceeds a horizontal portion of the hinge belt on the conveying side.   2. The chip sorting and discharging device according to claim 1, wherein the hinge belt has a vertical surface portion in a descending path from the head of the conveyor frame toward the meshing portion with the drum filter sprocket.   3. The chip sorting and discharging device according to claim 1, wherein an interval between the ceiling of the conveyor frame and the hinge belt is constant from a steep slope portion to an upper horizontal portion of the hinge belt. .

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