JP2002086328A - Solid-liquid separating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solid-liquid separating device capable of discharging the cutting chips discharged from a machine tool body together with cutting liquid efficiently and regardless of the size and shapes of the cutting chips, dripping cutting liquid satisfactorily from cutting chips and using the cutting liquid filtrated by returning it to the machine tool body. SOLUTION: A first separation section 6 having filtration holes 8 is provided in the middle of a coil or a screw conveyor 3 for conveying substances 4 to be processed, which becomes turbid with the cutting liquid and cutting chips discharged from the machine tool body 1. A discharge cylinder 9 wherein the tip from which the substances 4 to be processed incapable of passing through the filtration holes 8 are discharge is inclined upward is provided ahead the first separation section 6. A scraper conveyor 14 is provided for conveying the substances having passed through the filtration hole 8 to be processed on the side of the screw conveyor 3. A second separation section 21 having filtration holes 23 smaller than the holes 8 is provided in the middle of the scraper conveyor 14 to discharge the substances incapable of passing through the holes 23. A tank 27 is arranged on the side of the scraper conveyor 14. to contain the cutting liquid having passed through the filtration hole 23. The tank 27 is provided with a circulation pump 28 to return the cutting liquid to the machine tool body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process for separating a cutting fluid necessary for machining of a machine tool for machining and chips generated during the machining. The present invention relates to a solid-liquid separation processing device that separates and returns a cutting fluid to a machine tool main body and reuses the same.

[0002]

2. Description of the Related Art Conventionally, as solid-liquid separation processing apparatuses, those separated by a separation section provided on a hinge-pan type conveyor, those separated by a separation section provided on a coil or screw type conveyor, and those provided on a scraper type conveyor Some are separated at the separated part.

[0003]

In the above-mentioned conventional hinge-pan type, the width of the main body needs to be widened according to the amount of cutting fluid to be processed, and the degree of compression of the chips is small when chips are discharged. Does not result in a compressed discharge. In addition, the cutting fluid attached in the hinge-pan type falls to the chip receiving portion, and so-called chip water draining becomes extremely poor. In the case of the coil or screw type, discharge of fine sand-like or granular chips is blocked by the inclined portion of the discharge cylinder, and is not suitable for discharge. In the case of the scraper type, the discharge of relatively rough curled or dumpling chips is caught between the lower end of the scraper and the inner bottom of the transport path, and the machine tool itself stops when the conveyor stops. In addition, it hinders work and is unsuitable.

In view of the above, the present invention is capable of efficiently discharging chips out of the apparatus irrespective of the size and shape of the chips discharged together with the cutting fluid from the machine tool body, and cutting the cutting fluid of the chips. It is another object of the present invention to provide a solid-liquid separation processing apparatus which can return a filtered cutting fluid to a machine tool main body for use.

[0005]

According to the present invention, there is provided a solid-liquid separation processing apparatus comprising: a coil or screw conveyor for conveying an object to be processed in which a cutting fluid and a chip discharged from a machine tool main body are turbid; A first separating section having a filtering hole is provided in the middle of the discharge section, and a discharge section which discharges a processing object that cannot pass through the filtering hole to the outside of the apparatus is provided at an end of the first separating section. A first processing unit having a tube, and a filtration pore finer than the filtration hole of the first separation unit is provided in the middle of a scraper conveyor that conveys an object to be processed that has passed through the filtration hole in the first separation unit. A second processing unit that discharges an object to be processed that cannot pass through the filtration pores to the outside of the apparatus, and a cutting that passes through the filtration pores in the second separation unit. Characterized by comprising a tank for storing the liquid. .

Further, in the solid-liquid separation processing apparatus according to the first aspect, the center of the diameter of the coil or the screw conveyor is the same as the vicinity of the tip of the coil or the screw conveyor.
A coil or screw having a smaller diameter than this coil or screw is provided, and the coil or screw having a smaller diameter is located at a rising portion in the discharge cylinder. Further, in the solid-liquid separation treatment apparatus according to claim 1 or 2, the first separation portion has a filtration hole on a peripheral side and is a filter body through which an object to be treated moves inside. Things. Further, in the solid-liquid separation processing apparatus according to claim 1, the second separating section has a filtering pore on a peripheral side provided orthogonally to the traveling direction of the scraper conveyor, and has a rotating cylindrical shape. It is characterized by being a drum. Further, the solid-liquid separation processing device according to the first, second, third or fourth aspect is characterized in that a pump for supplying a cutting fluid to the machine tool body is provided in the tank.

According to the present invention having the above-mentioned structure, the object to be processed, in which the cutting fluid and the chips discharged from the machine tool main body are turbid, is conveyed to the first separation unit by the coil or the screw conveyor of the first processing means. The rough workpiece that cannot pass through the filtration hole in the first separation section is discharged out of the apparatus from the discharge cylinder. Since the tip of the discharge cylinder is inclined upward, the cutting fluid is not discharged out of the apparatus together with the rough workpiece, but flows down to the base side of the discharge cylinder, so that the cutting fluid of the cutting chips can be cut well. At the same time, the object to be processed in the discharge tube is compressed by the weight of the object to be processed above, and the volume is reduced and discharged.
In addition, if a small-diameter coil or screw near the tip of the coil or screw conveyor is positioned at the rising portion of the discharge tube, the chip discharge capability of the discharge tube is improved, and chip clogging is prevented.

Further, if the first separation section has a filtration hole on the peripheral side and the inside is a filter body into which the object to be processed is transferred, fine objects to be processed pass through the filtration hole of the filter body. And then the second
Processing means.

The object to be processed, which has passed through the filtration hole in the first separation section, is transferred to a second processing means, and is conveyed to a second separation section by a scraper conveyor. Fine objects to be treated, which are finer than the filtration holes in the first separation section and cannot pass through the filtration holes, are discharged out of the apparatus. Fine sand-like and granular chips of the object to be treated are removed by the filtration pores. In addition, since fine sand-like or granular swarf is conveyed by the scraper of the scraper conveyor, it is smoothly conveyed.

[0010] If the second separating section is a rotating cylindrical drum having filtering pores on the circumferential side provided at right angles to the traveling direction of the scraper conveyor, the cutting fluid is supplied from the outside of the cylindrical drum. It penetrates into the cylindrical drum and is housed in the tank from inside the cylindrical drum. Further, by providing a pump for supplying the cutting fluid to the machine tool main body in the tank, the filtered clean cutting fluid is again supplied to the machine tool main body.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of the solid-liquid separation device of the present invention, FIG. 2 is a vertical side view of a first processing unit, FIG. 3 is a vertical side view of a second processing unit, and FIG. In the drawing, reference numeral 1 denotes a machine tool for machining, and reference numeral 2 denotes a cylindrical conveying path in which a screw conveyor 3 is installed. The cutting fluid discharged from the machine tool 1 is provided on the upper surface of the conveying path 2. A receiving port 5 for the workpiece 4 in which the swarf is turbid is provided. Fine chips such as sand and granules, and rough chips such as curls and dangos are mixed.

Reference numeral 6 denotes a first separating section provided at the rear of the screw conveyor 3. The first separating section 6 is a short cylindrical drum 7 which is a filter attached to the conveying path 2. The screw conveyor 3 is inserted through the inside of the cylindrical drum 7, the workpiece 4 is conveyed and transferred by the screw conveyor 3, and a filtration hole 8 is provided on the peripheral side of the short cylindrical drum 7. The filter is a short cylindrical drum 7,
The shape of the drum may be circular, square, or other polygonal in cross section, or may be a shape having an open upper surface. The filtration hole 8 can be formed by any of a mesh, a saw blade, and a punch hole, but is appropriately set depending on the object 4 to be processed. The filtering hole 8 is a chip and relatively coarse chips cannot pass therethrough, but cutting fluid and fine sandy or granular chips can pass therethrough.

Reference numeral 9 denotes a discharge cylinder for the workpiece 4 provided behind the screw conveyor 3. The discharge cylinder 9 is a trumpet-shaped cylinder whose base is connected to the rear of the transport path 2 and whose tip is inclined upward. The outlet 9A is open upward. From the discharge tube 9, relatively curled or dango-shaped swarf that cannot pass through the filtration hole 8 in the first separation section 6 is discharged out of the apparatus.
Further, a radius is formed at a rising portion 10 from the transport path 2 to the discharge cylinder 9, and a screw 11 having a smaller diameter than the screw of the screw conveyor 3 installed in the linear transport path 2 is formed inside the rising portion 10. It is provided near the tip of the screw conveyor shaft 3A.

In the figure, reference numeral 12 denotes a screw conveyor shaft 3A.
Is a drive motor for the screw conveyor 3 provided at the base end of the screw conveyor 3. Although the screw conveyor 3 is shown in the drawings, a coil conveyor may be used. The first processing means includes the transport path 2, the screw conveyor 3, the first separation unit 6, and the discharge cylinder 9.

Reference numeral 13 denotes a long box-shaped conveyance path in which a scraper conveyor 14 is installed. Cutting fluid and sand passing through the filtration hole 8 of the first separation section 6 are provided on the side of the conveyance path 13. There is provided an inlet 15 through which the workpiece 4 containing fine and granular chips is introduced. The conveying path 13 has a front side inclined upward from a substantially central portion, and a discharge port 16 is provided at a front end portion.

In the scraper conveyor 14, a scraping plate 19 is attached at a fixed interval between endless chains 18 suspended on both sides between sprocket shafts 17, 17 provided on the base side and the forward side of the conveying path 13. The scraping plate 19 transports the workpiece 4 on the bottom surface of the transport path 13. In the figure, 20
Is a drive motor for the scraper conveyor 14 provided on one sprocket shaft 17.

Reference numeral 21 denotes a second separation unit provided in the transport path 13, and the second separation unit 21 is provided for the scraper conveyor 1.
4 is a cylindrical drum 22 provided at right angles to the traveling direction of the drum 4. The cylindrical drum 22 has substantially the same width as the horizontal width of the scraping plate 19, and has pores 23 for filtration on the peripheral side. This filtration pore 2
3 is formed finer than the filtration hole 8 of the first separation part 6, and only the cutting fluid can pass into the cylindrical drum 22. The object 4 to be processed, which is other chips, is discharged from the discharge port 16 by the scraping plate 19 to the outside of the apparatus.

The cylindrical drum 22 is rotatably supported on the inner side of the transport path 13 on both sides thereof. One end of the cylindrical drum 22 is closed, and the other end is opened to communicate with a cutting fluid outlet 25 provided on the side of the transport path 13. Both ends of the cylindrical drum 22 may be opened, and outlets 25 may be provided on both sides to allow the cylindrical drum 22 to flow out from both sides of the transport path 13. A sprocket 26 is fixed to one end of the cylindrical drum 22. The sprocket 26 is engaged with the endless chain 18, and the movement of the endless chain 18 causes the cylindrical drum 22 to rotate. The second processing means includes a transport path 13, a scraper conveyor 14, and a second separation unit 21. The second processing means may be installed on the side of the first processing means in the drawing, or may be installed below the first processing means.

Reference numeral 27 denotes a tank provided on the side of the transport path 13 for storing the cutting fluid, which communicates with an outlet 25 of the cutting fluid in the transport path 13. Reference numeral 28 denotes a circulation pump provided in the tank 27, which returns the filtered cutting fluid to the machine tool main body 1 again through the circulation pipe 29.

Next, the operation of the apparatus of the present invention will be described based on an embodiment. The workpiece 4 in which the cutting fluid and chips discharged from the machine tool main body 1 are turbid is introduced into the transport path 2 from the receiving port 5 of the transport path 2 of the first processing means. Is transported to the separation unit 6. Of the workpieces 4 that have moved inside the short cylindrical drum 7 in the first separation section 6,
Rough chips that cannot pass through the filtering hole 8 of the short cylindrical drum 7 are discharged from the discharge tube 9 to the outside of the apparatus.

Then, the workpiece 4 of the cutting fluid and the fine swarf that has passed through the filtration hole 8 is introduced into the transport path 13 of the second processing means from the inlet port 15 and is fed to the scraper conveyor 14.
Is transported to the second separation section 21 by the second separation section 21.
The fine swarf that cannot pass through the filtering fine pores 23 of the cylindrical drum 22 is discharged from the discharge port 16 to the outside of the apparatus, and only the cutting fluid that has passed through the filtering fine pores 23 is transported from the inside of the cylindrical drum 22 to the transport path. The cutting fluid in the tank 27 is returned to the machine tool main body 1 by the circulation pump 28 while being introduced into the tank 27 through the outlet 25 of the thirteen.

[0022]

According to the present invention, among the chips discharged together with the cutting fluid from the machine tool, curled or dango-shaped rough chips are efficiently processed by the first processing means having a coil or a screw conveyor. Separated and discharged, fine sand and granular chips are efficiently separated and discharged by the second processing means having a scraper conveyor, regardless of the size and shape of the chips,
Chips can be efficiently removed, and only filtered and clean cutting fluid can be returned to the machine tool body for use.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of the device of the present invention.

FIG. 2 is a vertical sectional side view of a first processing means of the apparatus of the present invention.

FIG. 3 is a vertical sectional side view of a second processing means of the apparatus of the present invention.

FIG. 4 is a partial sectional view of the device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine tool main body 2 Conveyance path 3 Screw conveyor 4 Workpiece 6 First separation part 7 Short cylindrical drum 8 Filtration hole 9 Discharge cylinder 10 Rise section 11 Small diameter screw 13 Conveyance path 14 Scraper conveyor 21 Second separation Part 22 Cylindrical drum 23 Filtration pore 27 Tank 28 Circulation pump

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takao Yoshida 38, Ushi, Michibayashi-cho, Negami-cho, Nomi-gun, Ishikawa F-term (reference) BE01 BF20 BF21 BF29 4D064 AA23 BM28 BM37 4D071 AA06 AB05 AB07 AB23 AB25 AB43 CA03 DA20

Claims (5)

[Claims] A first separating section having a filtration hole is provided in the middle of a coil or a screw conveyor for conveying an object to be processed in which a cutting fluid and chips discharged from a machine tool main body are turbid. A first processing unit having a discharge cylinder that is inclined upward to discharge an object to be processed that cannot pass through the filtration hole to the outside of the apparatus, and a filtration hole in the first separation unit; In the middle of the scraper conveyor that conveys the object to be passed, a second separation unit having a finer filtration hole than the filtration hole of the first separation unit is provided. A solid-liquid separation processing apparatus comprising: a second processing means for discharging an object to be processed to the outside of the apparatus; and a tank for storing a cutting fluid which has passed through the filtering pores in the second separation section. . 2. A coil or screw having a diameter smaller than that of the coil or screw conveyor is provided near the tip of the coil or screw conveyor with the same diameter as the coil or screw conveyor. The solid-liquid separation treatment device according to claim 1, wherein the solid-liquid separation treatment device is located at a rising portion in the inside. 3. The solid-liquid separation treatment apparatus according to claim 1, wherein the first separation section has a filtration hole on a peripheral side and is a filter body into which an object to be treated moves inside. . 4. The second separation section has a filtration pore on a peripheral side provided at right angles to a traveling direction of the scraper conveyor,
2. A rotating cylindrical drum according to claim 1,
4. The solid-liquid separation processing device according to 2 or 3. 5. A pump for supplying a cutting fluid to a machine tool body in a tank.
5. The solid-liquid separation processing device according to 2, 3, or 4.