JPH08290345A - Coolant liquid cleaning device - Google Patents

Abstract

PURPOSE: To clean waste coolant liquid properly without requiring the time and labor of a worker. CONSTITUTION: Waste coolant liquid mixed with foreign matter such as cut chip and ground chip generated from a machine tool at the time of machining flows into a separating member 30. The waste coolant liquid flowing in is separated into clean coolant liquid passing a porous part 34 and foreign matter remaining without passing. The foreign matter is moved to the receiving part 32 side inside the separating member 30 by the rotation of a spiral rib 36 is association with the rotation of the separating member 30 and discharged to a debris tank from an opening part on the receiving part 32a side. Not only the foreign matter but also bubbles remaining in the separating member 30 are discharged in the same way as the foreign matter. The clean coolant liquid having passed the porous part 34 reaches the recessed part 6 of a base and flow out to a clean tank from an outflow port 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste coolant liquid which is used for cooling a workpiece during processing of a processing machine such as cutting or grinding and which contains foreign matters such as cutting chips and grinding powder generated during processing. The present invention relates to a coolant liquid cleaning device for cleaning by separating the foreign matter and a clean coolant solution containing no foreign matter.

[0002]

2. Description of the Related Art Conventionally, an apparatus for cleaning this type of coolant will be described with reference to FIG.

At one end of the dirty tank 151 of the coolant tank, the magnet drum 152 is rotated with its upper part exposed from the liquid surface, and waste particles containing foreign matter such as cutting powder and grinding powder generated during processing of the processing machine are removed. The coolant liquid is caused to flow into the dirty tank 151 from the trough 154 installed at a far position on the side opposite to the position of the magnet drum 152. Then, the foreign matter is allowed to settle and separate while flowing over a long distance to the magnet drum 152 over time. Further, a waste coolant liquid is caused to flow in the direction of the arrow into a gap 156 between the outer circumference of the magnet drum 152 and the drum bottom plate 155 surrounding the lower half of the outer circumference of the magnet drum 152, and the intermediate tank (not shown) is provided through the communication port 157. In this intermediate tank, overflow is made to flow into a clean tank (not shown) so that the optimum liquid level of the dirty tank 151 can be maintained.

On the other hand, foreign matter such as cutting powder and grinding powder in the waste coolant liquid advances toward the magnet drum 152 according to the flow of the dirty tank 151, and the magnet drum 15
It is adsorbed by 2, and is dehydrated by the rubber roller 160 which is pressed against the outer periphery of the magnet drum 152 above the magnet drum 152, and is discharged to the foreign matter receiving box 161 outside the tank. In addition, the settled foreign matter is removed by the operator at the foreign matter impacting portion 153.
After being scraped up and drained, it was discharged to the box 162.

[0005]

In recent years, with the diversification of workpieces, materials that are not attracted to the magnet drum 152, such as aluminum and ceramics, are being machined. At the time of processing such a material, in the above apparatus, the magnet drum 152 did not function, and the waste coolant liquid could not be cleaned. Further, the grindstone used as a tool of the processing machine is also the magnet drum 1.
Since it is not adsorbed by 52, even when the material adsorbed by the magnet drum 152 is being processed, it is not possible to remove the abrasive grains that have come out of the grindstone during processing, and the cleanliness of the coolant has been impaired.

In recent years, in order to improve cutting and grindability of a processing machine, the amount of a surfactant mixed in a coolant has been increased, and as a result, bubbles are often generated, and the bubbles float on the liquid surface and are mutually separated. Entangled and growing like a sponge, it becomes a floating foreign substance. According to the above-mentioned conventional device, the sponge-like foreign matter floating above the liquid surface causes the magnet drum 152 to move.
However, the sponge-like foreign matter is surrounded by bubbles as described above, and the force pressing against the outer circumference of the magnet drum 152 is also passive due to the gentle flow of the coolant in the dirty tank 151. Therefore, it cannot be lifted from the liquid surface by being attracted to the outer periphery of the magnet drum 152. Therefore, the sponge-like foreign matter grows more and covers the entire liquid surface of the dirty tank 151, and finally the sponge-like thickness increases and overflows outside the tank to pollute the surrounding environment. For this reason, an operator has to separately remove the sponge-like foreign matter outside the tank and separately provide a device for defoaming the foam.

The present invention has been made in order to solve the above-mentioned problems, and provides a coolant liquid cleaning device capable of satisfactorily cleaning the waste coolant liquid without the labor of the operator. With the goal.

[0008]

In order to achieve this object, according to claim 1 of the present invention, it is used for cooling a workpiece during machining of a machining machine such as cutting or grinding, and occurs during machining. Waste coolant liquid containing foreign matter such as chips and grinding powder,
In the coolant liquid cleaning device for cleaning by separating the foreign matter and the clean coolant liquid containing no foreign matter, the coolant has a cylindrical shape with both ends opened, and the peripheral wall of the cylinder is formed of a porous material. It is provided with a separating member having an inner surface provided with a spiral spiral rib, and a rotating means for rotating the separating member.

According to a second aspect of the present invention, the porous material and the spiral rib of the separating member are formed of a material that is resistant to rust.

According to a third aspect of the present invention, the porous material and the spiral rib of the separating member are made of stainless steel.

In the present invention, the height of the spiral rib is 5
It is characterized by being mm or more. According to a fifth aspect, the height of the spiral rib is 10 mm or more.

According to a sixth aspect of the present invention, the waste coolant liquid is provided at the opening at the one end of the separating member, and the waste coolant liquid that has flowed into the central axis of the cylinder is prevented from flowing out from the opening at the one end. It is characterized in that it is provided with a guide rib extending toward.

In the present invention, the position of the opening at the one end of the separating member into which the waste coolant liquid flows is the same as the position of the opening at the other end for discharging the foreign matter in the vertical direction. Or, it is characterized by being low.

In the present invention, the height of the guide rib is
It is not less than 5 mm.

In the ninth aspect, the height of the guide rib is
It is characterized by being 10 mm or more.

According to a tenth aspect of the present invention, the rotating means comprises a supporting member that rotatably supports the separating member and is drivable, and a driving means that drives the supporting member to rotate the separating member. Characterize.

According to an eleventh aspect of the invention, the supporting member of the rotating means is a supporting roller on which the separating member is removably mounted, and the driving means rotates the supporting roller.

According to a twelfth aspect of the present invention, there is provided a guide plate which is provided outside the supporting roller and which restricts the movement of the separating member in the central axis direction.

According to a thirteenth aspect of the present invention, there is provided shower means for spraying, onto the porous material of the separation member, from outside to inside, a clean coolant liquid containing no foreign matter such as cutting chips and grinding powder generated during processing. It is characterized by having.

In the fourteenth aspect, the shower means is arranged to face the porous material of the separating member, and a plurality of nozzles for injecting the clean coolant liquid and the clean coolant liquid are supplied to the nozzles. It is characterized by comprising a pump.

According to a fifteenth aspect, there is provided an adjusting means for adjusting the rotation speed of the separating member by the rotating means.

[0022]

In the coolant liquid cleaning device of the first aspect of the present invention having the above-mentioned structure, it is used for cooling the workpiece during the processing of the processing machine such as cutting or grinding, and the chips generated during the processing Waste coolant liquid containing foreign matter such as grinding powder flows into the separation member through the opening at one end of the separation member. The inflowing waste coolant liquid is separated into the clean coolant liquid that passes through the porous material and flows out of the separation member, and the foreign matter that remains inside the separation member without passing through the porous material. . Then, the rotating means rotates the separating member, and by the rotation of the spiral rib accompanying the rotation of the separating member, the foreign matter remaining inside the separating member is moved to the opening side of the other end, and the other end side. The foreign matter is discharged from the opening.

In the second aspect, the porous material and the spiral rib of the separating member are resistant to rust and can be used for a long period of time.

In the third aspect, since the porous material and the spiral rib of the separating member are made of stainless steel, they are hard to rust and have excellent physical durability against the foreign matter and the like, and are long-term. Can be used.

In claim 4, the height of the spiral rib is 5
Since it is not less than mm, it is possible to favorably move the foreign matter remaining inside the separating member.

In the present invention, the height of the spiral rib is 1
Since it is 0 mm or more, the foreign matter remaining inside the separating member can be reliably moved.

In the sixth aspect, since the guide rib extending toward the central axis of the cylinder is provided at the opening of the one end of the separating member into which the waste coolant liquid is introduced,
The waste coolant that has flowed in is guided by the guide ribs so as not to flow out from the opening at the one end, and all the waste coolant can be cleaned.

In the present invention, the position of the opening at the one end of the separating member into which the waste coolant liquid flows is the same as the position of the opening at the other end for discharging the foreign matter in the vertical direction. Alternatively, it is made lower so that the coolant does not enter the discharge tank where foreign matter is discharged through the separating member.

In the present invention, the height of the guide rib is
Since it is 5 mm or more, it is possible to prevent the inflowing waste coolant liquid from flowing out from the opening portion at the one end.

It is characterized in that

In the ninth aspect, the height of the guide rib is 1
Since it is 0 mm or more, it is possible to reliably prevent the inflowing waste coolant liquid from flowing out from the opening portion at the one end.

According to a tenth aspect of the present invention, the supporting member of the rotating means rotatably supports the separating member, and the driving means drives the supporting member to rotate the separating member to flow into the separating member. Clean the waste coolant liquid.

In the eleventh aspect of the present invention, the separation roller is removably placed on the support roller of the rotation means, and the drive means rotates the support roller to rotate the separation member to move the inside of the separation member. Clean the waste coolant liquid that has flowed into the.

In the twelfth aspect, the guide plate provided outside the supporting roller regulates the movement of the separating member in the central axis direction, stabilizes the rotation of the separating member, and properly cleans the waste coolant liquid. To do.

In the thirteenth aspect of the present invention, the shower means applies, to the porous material of the separating member, from the outer side to the inner side, the clean coolant liquid containing no foreign matter such as cutting chips and grinding powder generated during processing. By spraying, the foreign matter caught on the porous material is removed from the porous material, and the foreign matter can be moved favorably.

In a fourteenth aspect, a plurality of nozzles of the shower means are arranged so as to face the porous material of the separating member, and a clean coolant liquid is supplied to the nozzles by a pump to clean the nozzles. The coolant liquid is sprayed onto the porous material from the outside to the inside.

In the fifteenth aspect, the waste coolant liquid is satisfactorily cleaned by adjusting the rotation speed of the separating member by the rotating means by the adjusting means.

[0038]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the clean coolant liquid in the clean tank 3 is supplied by a pump (not shown) to the processing machine 1 which performs cutting, grinding, etc., and is used for cooling the workpiece during processing. . The coolant liquid cleaning device 2 receives the waste coolant liquid containing foreign substances such as cutting powder and grinding powder generated during processing from the processing machine 1, and separates the waste coolant liquid into the foreign substances and the clean coolant liquid containing no foreign substances. Then, the clean coolant liquid that has been cleaned is discharged to the clean tank 3, and the separated foreign matter is discharged to the waste tank 4.

2 and 3, a coolant liquid cleaning device 2 is shown.
FIG. The coolant liquid cleaning device 2 has a base 5 made of a material that is resistant to rust, for example, stainless steel. The base 5 is provided with a recess 6 that is open at the center of the upper surface, and the recess 6 communicates with an outlet 7 provided on the side surface 5 a of the base 5. The outlet 7 is connected to the clean tank 3. Further, a side surface 5b of the base 5 is provided with a communication port communicating with the recess 6, and a pump 50 is attached to the communication port.

A substrate 8 made of stainless steel is attached to the upper surface of the base 5, and the substrate 8 is
A large opening portion and a small opening portion are provided with the separation portion 8a sandwiched therebetween. The large opening is arranged on the side surface 5c side of the substrate 5,
The small opening is arranged on the side surface 5b side of the substrate 5. There are four bearings 10a, 10b, 10c, 1 on the substrate 8.
0d is provided. The bearing 10a is a side surface 5 of the base 5.
It is arranged on the c side and the side surface 5a side, and the bearing 10b is the base 5
Is arranged on the separating portion 8a on the side surface 5a side of the bearing 10c.
Is arranged on the side surface 5c side and the side surface 5d side of the base 5, and the bearing 10d is arranged on the separating portion 8a on the side surface 5d side of the base 5. Bearing 10a, 10b and bearing 10c, 1
The shafts 12 are mounted rotatably at 0d and parallel to the horizontal direction. Support rollers 14 made of urethane are fixed to both ends of the shaft 12. A guide plate 16 having a diameter larger than the diameter of the support roller 14 is fixed to the end side of the shaft 12 of each support roller 14. The bearings 10a, 10b, 10c, 10
The d, the shaft 12, and the guide plate 16 are also made of a material that is resistant to rust, for example, stainless steel.

The drive gears 18a and 18b are fixed to the ends of the shaft 12 on which the bearings 10b and 10d are provided. A belt 19 is wound around the drive gears 18a and 18b. The motor shaft 21 of the motor 20 is further fixed to the one drive gear 18a. This motor 20
The drive gears 18a and 18b are rotated by the drive of, and the support roller 14 and the guide plate 16 are rotated via the shaft 12 in accordance with the rotation.

A cylindrical separating member 30 having both ends opened is placed on the supporting roller 14. In this state, the guide plate 16 causes the separation member 30 to move in the horizontal direction (separation member 3
Movement in the direction of the central axis of 0) is restricted. As shown in FIG. 2, FIG. 3 and FIG. 4, the separating member 30 has receiving portions 32 a and 32 b which form both open end portions of a cylindrical shape and which are supported by the supporting roller 14, and the receiving portion 32 a. Part 3
2b, and a porous portion 34 that forms a peripheral wall between the receiving portion 3 and
The guide rib 38 is provided in the opening on the 2b side and extends toward the central axis of the separating member 30, and the spiral rib 36 is provided spirally on the inner wall and extends toward the central axis.
The receiving portions 32a and 32b, the porous portion 34, the guide ribs 38, and the spiral ribs 36 are also made of a material that is resistant to rust, for example, stainless steel. If it is made of stainless steel, it has excellent durability. The width of the receiving portions 32a and 32b is substantially the same as the width of the support roller 14. As the aperture ratio of the porous portion 34, one that corresponds to the size of foreign matter or the like generated during processing is used.

In the case of this embodiment, the length of the separating member 30 is 4
The radius is 00 mm and the radius is 100 mm. The height of the guide rib 38 and the spiral rib 36 is 30 mm. Spiral rib 36
Is formed by halving twice over 400 mm.

Further, as shown in FIGS. 2 and 3, above the belt 19, there is provided a waste coolant liquid supply unit 40 to which the waste coolant liquid is supplied from the processing machine 1, and the waste coolant liquid supply unit. The outflow part 41 of 40 is the separation member 30.
It is inserted into the inside of the separating member 30 from the opening on the side of the receiving portion 32b.

Separation member 30 on the side surface 5d side of the base 5.
A shower member 52 connected to the pump 50 via a supply pipe 53 and extending parallel to the central axis of the separating member 30 is provided obliquely above the shower member 52.
A plurality of nozzles 54 that are open facing the separating member 30 are provided.

As shown in FIG. 3, the coolant cleaning apparatus 2 is provided with a switch box 60, and the switch box 60 has a motor drive switch 62 for turning on / off the drive of the motor 20. , Motor 2
Motor speed adjustment volume 64 for adjusting the rotation speed of 0
And a pump drive switch 66 for turning on and off the drive of the pump 50.

Next, the coolant liquid cleaning device 2 of this embodiment
The control unit will be described with reference to FIG. A motor drive switch 62 of the switch box 60, a motor speed adjusting volume 64, and a pump drive switch 66 are connected to the input side of the control circuit 68, and the output side of the control circuit 68 for driving the motor 20. Motor drive circuit 70
And a pump drive circuit 72 that drives the pump 50 are connected. When the motor drive switch 62 is turned on, the control circuit 68 outputs a signal for driving the motor 20 to the motor drive circuit 70 to drive the motor 20.
When a desired motor rotation speed is set by the operator adjusting the motor speed adjustment volume 64, the control circuit 68
Outputs a rotation speed signal corresponding to the rotation speed set in the motor speed adjustment volume 64 to the motor drive circuit 70, and drives the motor 20 at the corresponding rotation speed. Also,
When the pump drive switch 66 is turned on, the control circuit 68
Outputs a signal for driving the pump 50 to the pump drive circuit 72 to drive the pump 50. Next, the operation of the coolant cleaning apparatus 2 of this embodiment will be described. When the operator turns on the motor drive switch 62 to drive the motor 20, the support roller 14 is rotated through the drive gears 18a and 18b, the belt 19 and the like, and is placed on the support roller 14 as described above. The separating member 30 is the supporting roller 1.
It is rotated in the direction of arrow A by the frictional force between 4 and the receiving portions 32a and 32b. Then, when the processing machine 1 starts the processing, the waste coolant liquid supply section 40 is supplied with the waste coolant solution mixed with foreign matters such as chips and grinding powder generated during the processing from the processing machine 1, and passes through the outflow section 41. The waste coolant liquid flows into the separation member 30. At this time, the waste coolant that has flowed in does not flow out of the opening on the side of the receiving portion 32b due to the guide rib 38 of the separating member 30.

Then, the waste coolant liquid flowing into the separating member 30 is filtered by the porous portion 34 of the separating member 30. That is, only the liquid of the waste coolant is the porous portion 3
4, the foreign matter in the waste coolant liquid does not pass through and remains inside the separating member 30. The foreign matter remaining in the separating member 30 moves to the receiving portion 32a side inside the separating member 30 by the rotation of the spiral rib 36 accompanying the rotation of the separating member 30, and enters the waste tank 4 from the opening portion on the receiving portion 32a side. Is discharged. On the other hand, the liquid that has passed through the porous portion 34 of the separation member 30 is a clean coolant liquid that does not contain foreign matter, and the clean coolant liquid reaches the recess 6 of the base 5 and flows out from the outlet 7 to the clean tank 3. To be done. Further, not only the foreign matter but also the bubbles remaining in the separating member 30 move to the receiving portion 32a side by the rotation of the spiral rib 36 accompanying the rotation of the separating member 30 in the same manner as the foreign matter, and the opening portion on the receiving portion 32a side. From the waste tank 4 is discharged.

The worker adjusts the rotation speed of the motor 20 by adjusting the motor speed adjusting volume according to the supply amount of the waste coolant, etc.
The rotation speed of can be adjusted to an appropriate speed. For this reason, it is possible to favorably separate the liquid of the waste coolant liquid and the foreign matter and to discharge the separated foreign matter.

When the operator turns on the pump drive switch 66, the pump 50 is driven to scoop out the clean coolant liquid from the inside of the recess 6 and the shower member 5
Supply to 2. The clean coolant liquid supplied to the shower member 52 is jetted from the nozzle 54 toward the porous portion 34 of the separating member 30. Thereby, the porous portion 34
The foreign matter trapped on the dust is separated from the porous portion by the injected clean coolant liquid, and then discharged to the waste tank 4 through the opening on the receiving portion 32a side.

As described above, in the coolant liquid cleaning device 2 of the present embodiment, the peripheral wall is made up of the porous portion 34, and the spiral rib 36 is formed on the inner wall. Since the coolant is introduced and the separation member 30 is rotated, the waste coolant is
The clean coolant liquid that has passed through the porous portion 34 and the foreign matter that has not passed through the porous portion 34 and remains inside the separation member 30 are separated, and the foreign matter moves inside the separation member 30 due to the rotation of the spiral rib. It is discharged to the waste tank 4 through the opening at the end.
Therefore, regardless of the material and size of the foreign matter, it is possible to surely remove the foreign matter from the waste coolant liquid by using the porous portion 34 having an appropriate opening ratio, and the coolant liquid can be satisfactorily used. Can be cleaned and the operator can
Unlike the conventional case, it is not necessary to discharge the foreign matter from the coolant cleaning device, and the working efficiency is improved.

Further, not only the foreign matter but also the bubbles generated by the surface active agent in the coolant remain in the separating member 30 without passing through the porous portion 34, and the separating member 30 rotates in the same manner as the foreign matter. Due to the rotation of the spiral rib 36 in association with the above, the waste rib 4 is discharged to the waste tank 4 through the opening on the side of the receiving portion 32a. Therefore, the work of removing bubbles, which is required by a worker as in the conventional case, is not required, and the work efficiency is improved. Further, since it is not necessary to separately provide a device for defoaming bubbles, the processing cost can be reduced.

Since the guide rib 38 is provided toward the central axis of the separating member 30 at the opening of the separating member 30 on the receiving portion 32b side (the side into which the waste coolant liquid is introduced).
The inflowing waste coolant liquid is prevented from flowing out from the opening portion on the side of the receiving portion 32b, all the inflowing waste coolant liquid can be cleaned, and the cleaning of the coolant liquid is not impaired.

The separating member 30 is the supporting roller 1 on which it is placed.
Since the horizontal movement is restricted by the guide plates 16 provided on the side portions of No. 4, the separating member 30 does not move. Therefore, the cleaning operation of the coolant can be stably performed.

Since the separating member 30 is only placed on the supporting roller 14, it is different from other separating members having a porous portion having a different aperture ratio in accordance with the size of foreign matter generated during processing. It can be easily replaced, does not require the operator's labor, and improves work efficiency.

Since the motor 20, the drive gears 18a and 18b, the belt 19 and the pump 50 are provided on the side on which the waste coolant liquid is introduced, which is the side opposite to the side on which the separated foreign matter is discharged, the discharge is performed. It will not be contaminated by the foreign matter.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the present embodiment, the height of the spiral rib 36 was 30 mm, but if the height is such that foreign matter moves well in the separating member 30 and is discharged to the waste tank 4,
It may have any height, but it is preferably 5 mm or more, depending on the size of foreign matter generated during processing.
More preferably, if it was 10 mm or more, the foreign matter could be satisfactorily discharged from the separating member 30. Also, the spiral rib 3
Although 6 is formed on the inner wall of the separating member 30 by two and a half rotations, the number of rotations is not limited to this and may be formed by an appropriate number of rotations depending on the amount of foreign matter generated during processing. Further, the height of the guide rib 38 was also 30 mm, but it may be any height as long as it does not flow out of the opening into which the waste coolant liquid has flowed, preferably 5 mm or more, more preferably 10 mm or more. In that case, the waste coolant liquid did not flow out from the opening of the separating member 30 which flowed in.

In this embodiment, the receiving portions 32a and 32b, the porous portion 34, the guide ribs 38 and the spiral ribs 36 of the separating member 30 are made of stainless steel, but other materials may be used as long as they are rust-proof materials. It may be a resin.

In the present embodiment, the length of the separating member 30 is 400 mm and the radius is 100 mm. However, the size of the separating member 30 may be changed depending on the size and amount of foreign matter, the amount of waste coolant liquid, and the like. Good.

Further, in the present embodiment, the central axis of the separating member 30 is arranged in parallel with the horizontal direction, but in order to further remove the moisture of the foreign matter discharged to the waste tank 4, the separating member 30 is removed.
The position of the opening on the side of the receiving portion 32b (the opening on the side where the waste coolant liquid flows in) is set to the receiving portion 3 with respect to the vertical direction.
It may be lower than the position of the opening on the 2a side (the opening on the side where foreign matter is discharged). Further, the bearings 10a, 10b,
The vertical positions of 10c and 10d may be adjustable, and the separating member 30 may be arranged at an appropriate angle.

Further, in this embodiment, the pump 50 uses the shower member 5 to clean the clean coolant liquid in the recess 6 of the base 5.
However, the clean coolant liquid in the clean tank 3 may be supplied to the shower member 52.

Further, in this embodiment, the separating member 30 was placed on the rotating support roller 14 and rotated, but the separating member 30 is placed on the supporting member that is driven like the belt 19 and the separating member 30 is rotated. 30 can be rotated around its central axis,
In addition, a guide member may be provided to support the same so that it cannot move in the horizontal direction and the guide member can be rotated.

In this embodiment, the guide plate 16 for restricting the movement of the separating member 30 in the direction of the central axis is circular, but if the shortest distance from the center to the periphery is larger than the radius of the supporting roller 14, it is elliptical. It may be a shape or a polygon. Further, the guide plate 16 and the support roller 14 may be integrally formed of the same material.

Further, in the present embodiment, the shower member 52 extends parallel to the central axis of the separating member 30, but if the shower member 52 extends over the entire length of the separating member 30, the shower member 52 is located at the center of the separating member 30. It may extend in a direction intersecting the axis.

Further, in the present embodiment, the processing machine 1, the coolant liquid cleaning device 2, the clean tank 3 and the waste tank 4 are separate bodies, but the processing machine 1 may be provided with the coolant cleaning device 2 inside. Any form may be used, such as a clean tank 3 provided inside the processing machine 1.

Further, in this embodiment, the motor drive switch 62, the motor speed adjusting volume 64, and the pump drive switch 66 are provided in the coolant cleaning device 2, but the switches are not provided and the machining machine 1 is provided. The motor 20 may be driven in conjunction with the operation, or the motor 20 may be turned on and off, the speed may be adjusted, and the pump 50 may be driven on the switch panel of the processing machine 1 for a predetermined time. The pump 50 may be automatically driven every time it elapses.

In this embodiment, the separating member 30 is only placed on the supporting roller 14 and the upper position of the separating member 30 is not regulated. However, a regulating member for regulating the upper position is provided. Good.

[0069]

As is apparent from the above description, according to the coolant liquid cleaning apparatus of the present invention, the peripheral wall is made of the porous material, and the cylindrical separation member having the spiral rib on the inner wall is formed. Since the waste coolant is caused to flow in through the opening at one end and the separating member is rotated by the rotating means, the waste coolant is passed through the porous material and flows out to the outside of the separation member. The foreign matter that has not passed through the quality material and remains inside the separation member is separated, and the separated foreign matter moves inside the separation member toward the opening on the other end by the rotation of the spiral rib, and the opening on the other end. Therefore, no matter what kind of material the foreign material is, it can be reliably removed from the waste coolant liquid, and the coolant liquid can be satisfactorily cleaned. To cool off foreign objects It is taking less time to discharge from the liquid cleaning device, thereby improving working efficiency.

Further, not only foreign matter but also bubbles generated by a surfactant or the like in the coolant remain in the separating member without passing through the porous material, and spirals accompanying rotation of the separating member in the same manner as foreign matter. The ribs move inside the separating member and are discharged from the other opening. Therefore, it is not necessary to perform a bubble removing operation by an operator as in the conventional case, and the working efficiency is improved. Further, since it is not necessary to separately provide a device for defoaming bubbles, the processing cost can be reduced.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a relationship between a coolant cleaning device and a processing machine according to an embodiment of the present invention.

FIG. 2 is a perspective view of the coolant cleaning device of the embodiment as seen from one side.

FIG. 3 is a perspective view of the coolant cleaning device of the embodiment as seen from the other side.

FIG. 4 is a sectional view showing a separation member of the coolant cleaning device of the embodiment.

FIG. 5 is a block diagram showing a control unit of the coolant cleaning device of the embodiment.

FIG. 6 is an explanatory diagram showing a conventional coolant cleaning device.

[Explanation of symbols]

 1 Processing Machine 2 Coolant Liquid Cleaning Device 12 Shaft 14 Support Roller 16 Guide Plate 18a Drive Gear 18b Drive Gear 19 Belt 20 Motor 30 Separation Member 34 Porous Part 36 Spiral Rib 38 Guide Rib 50 Pump 52 Shower Member 54 Nozzle

Claims (15)

[Claims] 1. A waste coolant liquid, which is used for cooling a workpiece during machining of a machining machine such as cutting or grinding, and which contains foreign matter such as chips and grinding dust generated during machining, and the foreign matter, A coolant liquid cleaning device that cleans by separating it into a clean coolant liquid that does not contain foreign matter has a cylindrical shape with both ends open, and the peripheral wall of the cylinder is made of a porous material, and the inner surface of the porous material has a spiral shape. A separation member provided with a spiral rib and rotating means for rotating the separation member, the waste coolant liquid is flown in through an opening at one end of the separation member, and the waste coolant liquid that has flowed into the porous member Separation into the clean coolant liquid that passes through the material and flows out of the separation member and the foreign matter that does not pass through the porous material and remains inside the separation member, and is accompanied by the rotation of the separation member by the rotation means. The coolant liquid cleaning device, wherein the foreign matter remaining inside the separating member is moved toward the opening on the other end side by the rotation of the spiral rib, and the foreign matter is discharged from the opening on the other end side. 2. The coolant cleaning apparatus according to claim 1, wherein the porous material and the spiral rib of the separating member are formed of a material that is resistant to rust. 3. The coolant cleaning apparatus according to claim 2, wherein the porous material and the spiral rib of the separating member are made of stainless steel. 4. The coolant cleaning apparatus according to claim 1, wherein the spiral rib has a height of 5 mm or more. 5. The coolant cleaning apparatus according to claim 1, wherein the spiral rib has a height of 10 mm or more. 6. The waste coolant liquid is provided at the opening at one end of the separating member into which the waste coolant liquid flows, and extends toward the central axis of the cylinder so that the waste coolant liquid that has flowed in does not flow out from the opening portion at the one end. The coolant liquid cleaning device according to any one of claims 1 to 5, further comprising a guide rib. 7. The position of the opening at the one end of the separating member into which the waste coolant is introduced is the same as or lower than the position of the opening at the other end for discharging the foreign matter in the vertical direction. The coolant liquid cleaning device according to claim 6, wherein 8. The coolant cleaning apparatus according to claim 6, wherein the guide rib has a height of 5 mm or more. 9. The coolant cleaning apparatus according to claim 6, wherein the height of the guide rib is 10 mm or more. 10. The rotating means comprises a supporting member that rotatably supports the separating member and can be driven, and a driving means that drives the supporting member to rotate the separating member. The coolant liquid cleaning device according to claim 1. 11. The supporting member of the rotating means is a supporting roller on which the separating member is removably placed, and the driving means rotates the supporting roller. Coolant cleaning device. 12. The coolant liquid cleaning apparatus according to claim 11, further comprising a guide plate which is provided outside the support roller and which restricts movement of the separating member in the central axis direction. 13. A shower means for spraying, onto the porous material of the separation member, from the outside to the inside thereof, a clean coolant liquid containing no foreign matter such as cutting chips and grinding powder generated during processing is provided. Claim 1 characterized by
13. The coolant liquid cleaning device according to any one of 13 above. 14. The shower means comprises a plurality of nozzles arranged to face the porous material of the separating member, for injecting the clean coolant liquid, and a pump for supplying the clean coolant liquid to the nozzles. The coolant liquid cleaning device according to claim 13, wherein 15. The coolant cleaning apparatus according to claim 1, further comprising adjusting means for adjusting the rotation speed of the separating member by the rotating means.