JP2003311186A - Fluid purification apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new fluid purification apparatus in which not only a filter element but also a filter case housing the filter element have a function for removing an impurity of chips, grinding particles, or the like contained in fluid discharged from industrial machines such as a grinder. <P>SOLUTION: In the fluid purification apparatus for removing the impurity 14, a discharge opening 15 for discharging the impurity 14 in the fluid is formed in the lower part 13 of the cylindrical filter case 12, a discharge opening 17 for discharging the purified fluid is formed in the upper part 16 of the filter case 12, an inflow opening 20 for forcing the fluid into the filter case 12 in the tangent direction of the cylindrical part of the filter case 12 along the cylindrical side 19 of the filter case 12 is formed in the upper part side 18 of the filter case 12, and the filter element 11 suspended from the upper part 16 of the filter case 12 is provided in the filter case 12. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly applied to a fluid containing a mixture of chips or abrasive grains discharged from an industrial machine such as a grinder (hereinafter also referred to as a processing mother machine). The present invention relates to a fluid purification device for removing chips, contaminants such as abrasive grains, and the like.

[0002]

2. Description of the Related Art In the industrial world, it is discharged from a processing mother machine,
There is a demand for a fluid purification device that can easily collect contaminants from a fluid containing contaminants such as chips or abrasive grains, and that can reduce the time required for post-treatment.

Therefore, as a fluid purifying apparatus, a filter apparatus 44 including an upper cover 41, a lower cover 42, a filter element 43 mounted in the lower cover 42, etc. has been conventionally provided as shown in FIG.

The upper cover 41 is provided with a fluid inlet 45 and a fluid outlet 46. The lower cover 42 is attached to the upper cover 41 by the shaft 47 together with the filter element 43.

A fluid containing a mixture such as chips or abrasive grains, which has flowed out from the processing mother machine, flows into the filter device 44 from the inflow port 45 of the upper cover 41. The fluid, which contains the chips or the inclusions such as the abrasive grains, which have flowed into the filter device 44, is used as the lower cover 4
2 via the flow path 48 between the filter element 43 and
Filtration is performed by passing through the filter element 43, and the inclusions such as chips and abrasive grains contained in the fluid are collected in the filter element 43. The fluid filtered and cleaned by the filter element 43 in the filter device 44 flows out from the outlet 46 of the upper cover 41 via the flow path 49.

The upper cover 41 is attached by the shaft 47.
The filter element 43 inserted into the upper cover 41 is fixed to the upper cover 41 by a nut 50, and the lower cover 42 inserted into the upper cover 41 by a shaft 47 is fixed to the upper cover 41 by a nut 51.

When the filter element 43 is cleaned or replaced, the drain plug 52 drains the fluid stored in the lower cover 42 and then the nut 5
1. The lower cover 42 and the filter element 43 are removed using the nut 50 and the nut 50.

[0008]

Claim 1 according to the present invention
Is different from the above-mentioned method, it has a purification function of contaminants such as chips or abrasive particles contained in the fluid discharged from the processing mother machine not only in the filter element but also in the filter case incorporating the filter element. It is an object of the present invention to provide a novel fluid purification device also equipped with.

According to a second aspect of the present invention, a filter element is built in and settles in a filter case having a function of purifying contaminants such as chips in a fluid or abrasive grains discharged from a processing mother machine. An object of the present invention is to provide a fluid purification device that is advantageous for suppressing inclusions such as chips, chips, or abrasive grains.

[0010]

A fluid purifying apparatus according to a first aspect of the present invention is a fluid purifying apparatus which is mainly used in a fluid containing a mixture of chips or abrasive grains, which is discharged from an industrial machine such as a grinding machine. As a fluid purification device for removing contaminants, a mixture discharge port for discharging contaminants in the fluid is provided at the bottom of the cylindrical case, and a discharge port for discharging the purified fluid at the top. A filter case comprising a fluid inlet provided on an upper side surface of the case and capable of press-fitting a fluid into the case along a cylindrical side surface of the case from a tangential direction of a cylindrical portion of the case; In the filter case, a filter element suspended from an upper portion of the filter case is provided.

A fluid purifying apparatus according to a second aspect is the first aspect.
In the above, the lower part is provided with a mixed substance discharge port for discharging the mixed substances in the fluid, and the upper part is provided with a discharge port for discharging the purified fluid. It has a fluid inlet that can press the fluid along the side surface, and has a conical shape between the cylindrical part on the upper side surface and the discharge port for the mixture on the lower side. It has the same shape as a general cyclone. It is characterized by including a filter case.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A fluid purifying apparatus according to this embodiment is a fluid containing a mixture of chips, abrasive grains, or the like, which is mainly generated when grinding is performed by a processing mother machine such as a grinding machine. It is a device for removing chips or inclusions such as abrasive grains from inside.

It should be noted that this occurs due to the grinding process of the grinder,
For chips, abrasives, and other contaminants, the grinding machine model,
Generally, the chip length is 1 depending on the grinding process etc.
0 to 200 μ, and the abrasive grain size is about φ50 to φ200 μ. It is demanded that the inclusions in the fluid generated by the grinding process of the grinder be reliably removed in order to improve the processing accuracy and prolong the life of the fluid.

Representative embodiments of the present invention will be described below with reference to the drawings. However, the dimensions, shapes, materials, relative positions, etc. of the components described in this example are as follows.
Unless otherwise specified, the scope of the present invention is not intended to be limited thereto and is merely an illustrative example.

In the fluid purifying apparatus according to the present embodiment, as can be understood from FIGS. 1 and 2, a cylindrical filter case 12 containing a filter element 11 is provided.

The lower portion 13 of the cylindrical filter case 12
In addition, the mixture discharge port 15 for discharging the mixture 14 in the fluid and the upper portion 16 of the cylindrical filter case 12 are
A discharge port 17 for discharging the purified fluid,
A fluid inlet port 20 is provided on the upper side surface 18 of the filter case 12, and is capable of press-fitting a fluid from the tangential direction of the cylindrical portion of the filter case 12 along the cylindrical side surface 19 of the case into the filter case 12. And a filter element 11 suspended from the upper part of the filter case 12 in the filter case 12.
It is equipped with.

A fluid inlet port 20 provided on the upper side surface 18 of the filter case 12 and capable of press-fitting the fluid from the tangential direction of the cylindrical portion of the filter case 12 along the cylindrical side surface 19 of the case into the filter case 12. Thus, for example, the coolant containing the mixed substances 14 such as chips or abrasive grains, which is increased in pressure to 0.3 to 0.5 MPa, is introduced into the coolant in the filter case 12 in which the coolant is stored. As a result, the descending vortex 21 that rotates in a spiral is generated.

Chips contained in the coolant, for example, chips having a length of 50 μm or more, or inclusions 14 such as abrasive grains.
Is removed by centrifugal separation by centrifugal force acting on the inclusions 14 by the descending vortex 21 rotating in a spiral shape, and most of the inclusions 14 are caused by the descending vortexes 21 on the inner wall of the cylindrical portion of the filter case 12. It is accumulated, descends the wall and accumulates at the bottom of the filter case 12,
Primary filtration is complete.

When the descending vortex flow 21 of the coolant reaches the lowermost part in the filter case 12, a rising vortex flow 22 of the coolant, which is weaker than the descending vortex flow 21 of the coolant, is generated in the central portion of the filter case 12.

Due to the weakly rising vortex 22 of the coolant generated in the center of the filter case 12, the chips contained in the coolant, for example, chips having a length of 10 μ to 50 μ, are discharged to the center of the filter case 12 together with the coolant. The flange 2 is raised and bolted to a flange 23 provided on the upper part of the filter case 12, and a discharge port 17 for discharging purified coolant is provided on the upper part of the flange 2
4 suspended on the lower part of, for example, filtration accuracy 10μ ~ 50μ
The outer surface 25 to the inner surface 2 of the hollow filter element 11 of
The secondary filtration of the coolant is carried out by passing the coolant to 6 and the purified coolant is passed from the hollow portion 27 of the filter element 11 to the flanges 23 and 24 through the flow passages 28 provided in the central portions. By discharging from the discharge port 17 for discharging, the coolant containing the mixed material 14 such as chips or abrasive grains is purified.

The mixture 14 such as chips or abrasive grains accumulated in the lowermost portion of the filter case 12 is opened from the drain valve 29 and the coolant in the filter case 12 is discharged from the discharge port 15. 1
2 Discharged to the outside.

When the filter element 11 is clogged, the flange tightening bolt 30 is removed, the flange 24 on which the filter element 11 is suspended is pulled out from the filter case 12 together with the filter element 11, and the filter element 11 is cleaned and replaced. Carry out.

FIG. 3 and FIG. 4 show another example of the fluid purifying apparatus according to this embodiment.

The lower part of the filter case 31 is provided with a lower nozzle 32 for discharging the mixture 14 in the coolant, and the upper part of the filter case 31 is provided with a discharge port 33 for discharging the purified coolant. Is the cylindrical portion 34
And an inlet nozzle 36 capable of press-fitting a coolant from the tangential direction 35 of the cylindrical portion along the cylindrical side surface, and a conical shape 37 is provided between the cylindrical portion 34 on the upper side surface and the lower nozzle 32. The filter case 31 has a shape similar to that of a cyclone.

A coolant containing a mixture of chips and abrasive grains, which is mainly discharged from an industrial machine such as a grinder, is tangentially flown from the inlet nozzle 36 to the cylindrical portion 34 in a thin plate-like flow, for example. , The sprayed coolant increased to 0.3 to 0.5 MPa results in a swirling descending swirl flow 38, which descends toward the lower nozzle 32 along the conical wall 39, and the lower nozzle 32 is throttled. As a result, the rising vortex 40 is generated.

The chips 14 contained in the coolant and the inclusions 14 such as abrasive grains are removed by centrifugal separation by centrifugal force acting on the rotating inclusions 14. Most of these inclusions 14 fall. Conical wall 39 due to vortex 38
Is accumulated on the smooth inner wall of the nozzle, slides down the wall, and is discharged to the outside from the lower nozzle 32 together with a small amount of coolant.

The chips 14 and the inclusions 14 such as abrasive grains contained in the coolant are removed, and the coolant that has been primarily filtered becomes an ascending vortex 40, which is secondarily filtered by the filter element 11 described above, and then the filter case 11 The coolant containing the contaminants 14 such as chips or abrasive grains is purified by being discharged from the discharge port 33 provided in the upper portion for discharging the purified coolant.

Items not described in the embodiments of FIGS. 3 and 4 are the same as those of the embodiments of FIGS. 1 and 2. Others The device of the present invention is not limited to the embodiments described above and shown in the drawings, and can be modified as appropriate without departing from the scope of the invention.

[0029]

In the fluid purifying apparatus according to the first aspect of the present invention, the contaminants such as chips or abrasive grains can be efficiently accumulated in the filter case, so that the life of the filter element provided in the filter case is extended. In addition to being able to measure, it is possible to easily maintain them.

According to the fluid purifying apparatus of the second aspect, it is possible to supply the fluid purifying apparatus that does not store chips or inclusions such as abrasive grains in the filter case.

Further, due to these effects, it is possible to prevent the deterioration of the coolant, reduce the running cost, and the like. With regard to the coolant for industrial machines that are repeatedly used,
By maintaining the cleanliness and extending the life, the performance of the processing mother machine can be maintained and the overall operating cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a fluid purification device of the present invention.

FIG. 2 is a plan view showing an example of a fluid purification device of the present invention.

FIG. 3 is a front view showing another example of the fluid purification device of the present invention.

FIG. 4 is a plan view showing another example of the fluid purification device of the present invention.

FIG. 5 is a front view showing a conventional fluid purification device.

[Explanation of symbols]

11 ... Filter element 12 ... Filter case 13 ... Lower part 14 ... Mixture 15 ... Discharge port 16 ... Upper part 17 ... Discharge port 18 ... Upper side surface 19 ... Cylindrical side surface 20 ... Inflow port 21 ... Downward vortex flow 22 ... Upward vortex flow 23 ... Flange 24 ... Flange 25 ... Outer surface 26 ... Inner surface 27 ... Hollow part 28 ... -Flow channel 29 ... Drain valve 30 ... Flange tightening bolt 31 ... Filter case 32 ... Lower nozzle 33 ... Discharge port 34 ... Cylindrical portion 35 ... Cylindrical portion tangential direction 36. ..Inlet nozzle 37 ... Cone shape 38 ... Descent vortex 39 ... Cone wall 40 ... Upward vortex 41 ... Upper cover 42 ... Lower cover 43 ... Filter element 44 ... Filter device 45 ... Inlet 46 ... outlet 47 ... shaft 48 ... flow path 49 ... flow path 50 ... nut 51 ... nut 52 ... drain plug

Claims (2)

[Claims] 1. A fluid purification device for removing the inclusions from a fluid mainly containing the inclusions such as chips or abrasive grains discharged from an industrial machine such as a grinding machine. A cylindrical case having a mixed material discharge port for discharging the mixed material in a fluid at a lower portion, and a discharge port for discharging a purified fluid at an upper portion, and provided on an upper side surface of the case. And a filter case having a fluid inlet capable of press-fitting a fluid into the case along the cylindrical side surface of the case from the tangential direction of the cylindrical portion of the case; and in the filter case, A fluid purification device comprising a filter element suspended from an upper portion in a filter case. 2. The lower part according to claim 1, wherein the lower part is provided with the mixed substance discharge port for discharging the mixed substance in the fluid, and the upper part is provided with a discharge port for discharging the purified fluid. It has a cylindrical portion, and a fluid inlet capable of press-fitting a fluid along the cylindrical side surface from the tangential direction of the cylindrical portion, and a conical shape between the cylindrical portion on the upper side surface and the mixture discharge port on the lower side. And a filter case having a shape similar to that of a general cyclone.