JPH1119847A - Cutting liquid cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently catch the chips floating in the cutting liquid by arranging plural open channel boxes, which are respectively provided with a shallow water passage having a relatively gradual inclination, in multiple stages so as to provide a multi-stage open channel device, in which the cutting liquid is flowed down to lower stages in order. SOLUTION: In a first open channel box 10, relatively heavy chips, which is mixed in the cutting liquid (w), deposit to a bottom surface of a channel. This cutting liquid is received through a first liquid reservoir tank 11. In a multi-stage open channel device 12, chips floating in the cutting liquid (w) flowing down in the channel of each open channel box 120 deposit to a bottom surface of the channel. The deposited chips grow to a shape like a bur of chestnut, and efficiently catch the chips floating in the cutting liquid for elimination. A filter device 14 separates the chips in the cutting liquid (w), which is not eliminated by the first open channel box 10 and the multi-stage open channel device 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for purifying a cutting fluid used in a grinding machine or the like.

[0002]

2. Description of the Related Art In a grinding machine or the like, a cutting fluid is supplied to a grinding processing unit during grinding in order to suppress friction between a workpiece and a grindstone and a rise in temperature thereof and to wash away cutting powder. .

[0003] This cutting fluid is mostly water and mixed with some cutting oil. When supplying the cutting fluid to a grinding machine or the like, a cutting device such as shown in FIG. After supplying to the cleaning device, the flow to the cleaning device is repeated.

The above-mentioned purifying apparatus receives a cutting fluid flowing down from a grinding machine or the like into a liquid reservoir 2 from a liquid inflow pipe 1, and applies a cutting powder mixed in the received cutting fluid to a surface of a roller 3 which is driven to rotate. A roller scraping device 5 that is magnetically attracted and scraped up, and the scraping powder and the like thus scraped off is separated by a scraper 4 and collected in a separately prepared container, and a liquid outflow of the scraping device 5 The cutting fluid w flowing out of the pipe 6 is received in the first sedimentation tank part 7a, and then slowly flows into the second sedimentation tank part 7b, the third sedimentation tank part 7c, and the fourth sedimentation tank part 7d in this order. A liquid storage and sedimentation tank 7 for precipitating cutting powder and the like still remaining in the cutting fluid during the flow process, and a cutting fluid in the fourth sedimentation tank part 7d is supplied to a grinding machine or the like through a supply pipe 8. Pumping means 9 for Going on.

[0005]

In the conventional purifying apparatus described above, the surface of the roller 3 is severely worn, so that the maintenance cost is increased, and the liquid storage / sedimentation tank 7 occupies a relatively large floor surface. This impairs the rational use of the floor surface in the factory, and the cutting fluid still remains turbid even when it reaches the fourth settling tank section 7d, and is not sufficiently purified.

An object of the present invention is to provide a cutting fluid purifying apparatus which solves such a problem.

[0007]

In order to achieve the above object, the present invention provides a first open channel box having a relatively gently inclined open channel for receiving a cutting fluid, and a cutting flow from the open channel box. A first reservoir tank for receiving the liquid, a plurality of second open channel boxes having a relatively gentle slope with a shallow channel that is supplied with cutting fluid in the first reservoir tank are arranged in a multi-stage manner, A multi-stage open channel device in which the cutting fluid sequentially flows down to the lower stage, a second storage fluid tank for receiving the cutting fluid flowing down from the multi-stage open channel device, and the cutting fluid in the second storage fluid tank is supplied. Filtration device, a third reservoir tank for receiving the cutting fluid flowing down from the filtration device,
In addition, a configuration is provided in which a liquid sending means for sending out the cutting liquid in the third storage liquid tank is provided.

At this time, the open channel of the first open channel box has a bent shape, and the second open channel box has a configuration in which the bottom of the channel is lowered stepwise toward the flow direction.

[0009] Further, the filtering device has a structure in which a sponge plate is housed so as to be able to be taken in and out of the box body, and the cutting fluid supplied into the box body flows out after passing through the sponge plate.

In the present invention, the first open channel box allows the cutting fluid to flow down to the first storage tank at an appropriate speed. The sediment adheres to the bottom surface, and the adhered cutting powder and the like grows in the form of chestnuts with the passage of time, and efficiently captures the cutting powder and the like floating in the cutting fluid. At this time, the bent open channel of the first open channel box suppresses the flow of the cutting fluid, and effectively causes sedimentation and separation of cutting powder and the like on the bottom of the channel.

In the multistage open channel device, the cutting fluid is made into a thin layer through a second open channel box and flows down a long distance at an appropriate speed, and during this flow, cutting powder and the like in the cutting fluid is deposited on the bottom of the channel. Settle to deposit. Also at this time, the cutting powder and the like attached to the bottom of the water channel grows like a chestnut, and efficiently captures the cutting powder and the like floating in the cutting fluid.

The filtering device removes, for example, cutting powder not removed by the first open channel box and the multi-stage open channel device by a filtering action using a sponge plate or the like.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a purifying apparatus according to the present invention, in which A is an overall perspective explanatory view, B is a plan view showing a part thereof, and FIG. is there.

As shown in these figures, the purifying apparatus of the present invention comprises a first open channel box 10 having a relatively gentle slope open channel 10a for receiving a cutting fluid w.
A first stored liquid tank 11 for receiving a cutting fluid w flowing down from the open channel box 10;
1, a multistage open channel device 12 to which the cutting fluid is supplied, a second storage fluid tank 13 for receiving the cutting fluid w flowing down from the multistage open channel device 12, A filtering device 14 to which the cutting fluid w is supplied, a third storage fluid tank 15 for receiving the cutting fluid w flowing down from the filtration device 14, and a cutting fluid w for sending out the cutting fluid w in the third storage fluid tank 15. The liquid feeding means 16 and the main body frame 17 having a box frame shape are provided.

The first open channel box 10 is specifically constructed as follows. That is, as shown in FIG. 1B, a longitudinal partition wall 101 is provided inside a long and thin stainless steel box fixed to the rear surface of the main body frame 17, and a cutting fluid w from a grinding machine or the like is supplied with a water passage starting point a 1. , And from there, flows down to the falling hole at the channel end point a3 via the channel bending point a2.

The multistage open channel device 12 is specifically described as follows.
It is done as follows. That is, the seven second open channel boxes 12
0 are formed, these are arranged in a multi-stage form, and each open channel box 120 is independently mounted so as to be able to be pulled out to the front f1. Each open channel box 120 has a width b of about 30 to
It is relatively shallow, about 50 cm and depth is about 5-10 cm,
A structure having an open water passage 120a with a relatively gentle slope and an outflow hole 120c for lowering the water passage bottom surface 120b stepwise in the flow direction of the cutting fluid w and allowing the cutting fluid w to flow downward at the end of the water passage. And The seven open channel boxes 120 are arranged so that the flow directions of the cutting fluid w are alternately opposite to each other.

The filtering device 14 is, specifically, a bottom plate 1
4a has a configuration in which a plurality of sponge plates 140 each having a size of about several cm and having a size of covering a whole cross section of the box body formed of a perforated plate are stacked and can be taken in and out.

Reference numeral 18 denotes a first liquid feed pump for supplying the cutting liquid w in the first storage liquid tank 11 to the start of the channel of the open channel box 120 at the top of the multistage open channel device 12. Reference numeral 19 denotes a second liquid supply pump for supplying the cutting liquid w in the second storage liquid tank 13 into the space c on the sponge plate 140 of the filtration device 14.

The liquid supply means 16 supplies the cutting liquid w in the third storage liquid tank 15 to the grinding machine or the like through the supply pipe 21 by the third liquid supply pump 20. Reference numeral 22 denotes an operation panel.

An example in which the apparatus of the present invention configured as described above is used for a grinding machine and the operation at that time will be described. FIG.
As shown in (1), a liquid inflow pipe 24 for flowing the grinding fluid on the bed 23a of the grinding machine 23 to the channel start point a1 of the first open channel box 10 is provided, and the tip of the supply pipe 21 of the liquid feeding means 16 is ground. It is connected to the cutting fluid supply nozzle 23b of the board 23. Then, a required amount of cutting fluid is supplied into the third storage fluid tank 15.

When the work m is polished, the work m is fixed to a chuck 23c of the grinding machine 23, and the work m is rotated by the rotation of the chuck 23c, and the grindstone 23e is rotated by rotating the grindstone drive shaft 23d. Rotate.

On the other hand, the first to third liquid feed pumps 1
The control devices 8, 19, and 20 are set in an operable state, whereby the third liquid supply pump 20 rotates to supply the cutting liquid in the third storage liquid tank 15 to the cutting liquid supply nozzle 23b through the supply pipe 21. The feed and cutting fluid w is discharged from the supply nozzle 23b and is continuously supplied to a grinding section such as the grindstone 23e and the work m.

The cutting fluid w thus supplied acts to alleviate the friction in the polishing section, remove heat, and wash away the cutting powder, and flows down onto the bed 23 a of the grinding machine 23.

The cutting fluid w which has flowed down on the bed 23a flows by gravity into the channel starting point a1 of the first open channel box 10 through the liquid inflow pipe 24, and is bent through the open channel 10a to cause the first stored liquid tank 11 to flow. Flows into.

The cutting fluid w flowing into the first storage fluid tank 11 is supplied by the first fluid feed pump 18 to the uppermost open channel box 120 of the multistage open channel device 12. The cutting fluid w thus supplied flows in a thin layer of about several cm on the channel bottom surface 120b of each open channel box 120, falls from the drop hole 120c of each open channel box 120, and reverses one by one. And flow down sequentially, and fall down into the drop hole 12 of the bottom open channel box 120.
The cutting fluid w dropped from 0c flows into the second storage fluid tank 13.

The cutting fluid w which has flowed into the second storage fluid tank 13 is supplied to the filtration device 14 by the second fluid pump 19, and the supplied cutting fluid w is supplied to the sponge plate 140 serving as a filter medium. , And flows into the third storage liquid tank 15, after which it is again supplied to the grinding machine 23 through the supply pipe 21, and the cutting fluid w circulates on the same path.

By the circulation of the cutting fluid w, each part operates as follows. That is, the first open channel box 10 bends and causes relatively heavy cutting powder mixed in the cutting fluid w flowing down the open channel 10a to settle on the bottom of the channel. At this time, the precipitated cutting powder and the like grow sequentially in the form of an upward chestnut girdle, and as this growth progresses, the chestnut girder becomes a long and numerous cutting powder floating in the cutting fluid w. Is efficiently captured and removed. The precipitated cutting powder and the like are cleaned and removed every few weeks by an operator.

The multistage open channel device 12 is provided with each open channel box 120.
The cutting powder and the like floating in the cutting fluid w flowing down the water channel are settled on the bottom of the water channel, and the precipitated cutting powder and the like grow into a chestnut-like shape in the same manner as described above. It effectively captures and removes suspended cuttings,
At this time, the cutting fluid w flows in a thin layer, the cutting fluid w is alternately turned back and forth and flows at an appropriate speed, and the flow path of the cutting fluid w becomes long. Therefore, the efficiency of capture and removal of cutting powder and the like is further promoted.

The cutting powder and the like settled on the channel bottom 120b of each open channel box 120 are cleaned and removed by pulling each open channel box 120 backward f1.

The filtering device 14 separates, with the sponge plate 140, cutting powder and the like in the cutting fluid w that has not been removed by the first open channel box 10 or the multi-stage open channel device 12. The cutting powder and the like adhering to the sponge plate 140 are removed by washing the sponge plate 140 with a washing machine or the like, and the washed sponge plate 140 is repeatedly used.

[0031]

According to the above-described present invention, the size of the whole in a plan view can be reduced to about half of the conventional size, and the floor surface in the factory can be used efficiently. The conventional roller to be pressed becomes unnecessary, and there is no part that is significantly worn, so that the maintenance management cost is reduced.In addition, since the cutting fluid is purified through a relatively narrow and long water path, the cutting fluid in an incompletely processed state is reduced. In addition, the sedimentation of the cutting fluid does not occur, and the sediment such as cutting powder grows into a greasy shape by an appropriate flow, which effectively captures and removes the cutting powder and the like in the cutting fluid, thereby purifying the cutting fluid. The effect is excellent.

According to the second aspect, the cutting powder and the like settled in the open channel of the first open channel box easily adhere to the bottom of the channel, and the growth of the chestnut-like material is promoted. Becomes

According to the third aspect of the present invention, it is possible to reliably remove the cutting powder in the relatively small cutting fluid that has not been removed by the first open channel box or the multistage open channel device.

[Brief description of the drawings]

FIG. 1 shows a purification device according to the present invention, wherein A is an overall perspective explanatory view, and B is a plane showing a part thereof.

FIG. 2 is an explanatory cross-sectional view illustrating a use state of the purification device.

FIG. 3 is a view showing a conventional purification device.

[Explanation of symbols]

 w Cutting fluid 10 First open channel box 10a Open channel 11 First stored liquid tank 12 Multi-stage open channel device 12a Open channel 120 Second open channel box 120a Channel bottom 13 Second stored liquid tank 14 Filtration device 15 Third stored liquid Tank 16 Liquid sending means 140 Sponge plate

Claims (4)

[Claims] 1. A first open channel box provided with a relatively gently inclined open channel for receiving a cutting fluid, a first reservoir tank for receiving a cutting fluid flowing down from the open channel box, and a first reservoir fluid A multistage type in which the cutting fluid in the tank is supplied and a plurality of second open channel boxes with a relatively gentle and shallow open channel are arranged in a multistage form, and the cutting fluid flows down sequentially to the lower stage. An open channel device, a second storage tank for receiving the cutting fluid flowing down from the multistage open channel device, a filtration device supplied with the cutting fluid in the second storage tank, and receiving a cutting fluid flowing down from the filtration device An apparatus for purifying a cutting fluid, comprising: a third storage liquid tank; and a liquid sending means for sending out the cutting liquid in the third storage liquid tank. 2. The apparatus for purifying a cutting fluid according to claim 1, wherein the open channel of the first open channel box is bent. 3. The apparatus for purifying a cutting fluid according to claim 1, wherein the bottom of the channel of the second open channel box is lowered stepwise toward the flow direction of the cutting fluid. 4. The filter device is characterized in that a sponge plate is housed in a box so as to be able to be taken in and out, and the cutting fluid supplied into the box flows out after passing through the sponge plate. The cutting fluid purifying apparatus according to claim 1, 2 or 3.