CN113289442B

CN113289442B - Automatic water filter that divides of numerical control machining center air supply

Info

Publication number: CN113289442B
Application number: CN202110636786.6A
Authority: CN
Inventors: 王诗豪; 凌川生
Original assignee: Anhui Jinye Cnc Technology Co ltd
Current assignee: Anhui Jinye Cnc Technology Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-05-27
Anticipated expiration: 2041-06-08
Also published as: CN113289442A

Abstract

The invention belongs to the field of numerical control machining equipment, and particularly relates to an automatic water-dividing water filter for a gas source of a numerical control machining center, which comprises a main body, a gas inlet, a gas outlet, a water cup, a guide plate and a filter element, wherein the gas inlet and the gas outlet are oppositely arranged on the side walls of two sides of the main body, the water cup is arranged at the lower end of the main body, the guide plate is arranged on the inner wall of an opening at the upper end of the water cup, the inner end of the gas inlet is communicated with an opening at the upper end of the water cup, the filter element is arranged in the water cup, the inner end of the gas outlet is fixedly communicated with the opening at the upper end of the filter element, a filtering mechanism is arranged at the upper end of the filter element, a buoyancy water discharging mechanism is arranged at the bottom of the water cup, the filtering mechanism comprises a pneumatic wheel, a rotary drum, a filter screen plate and a lantern ring, and the lantern ring is fixedly connected on the inner side wall at the upper end of the filter element. The automatic water filter has a good water filtering effect, automatically cleans the filter element, avoids the blockage problem, can automatically drain water while water filtering is carried out, does not influence the continuous operation of the operation, and improves the working efficiency.

Description

Automatic water filter that divides of numerical control machining center air supply

Technical Field

The invention belongs to the field of numerical control machining equipment, and particularly relates to an automatic water diversion water filter for a gas source of a numerical control machining center.

Background

In a numerical control machining center, water vapor, oil drops and other impurities in compressed gas are separated from the gas through an automatic water-dividing water filter to achieve the effect of purifying a gas source, so that the normal work of a pneumatic actuating element is guaranteed, the pneumatic actuating element is often used together with a pressure reducing valve and an oil mist device, an element integrating the three parts is called a gas source triplet, the gas source triplet dries the compressed gas, adjusts the pressure and refuels, and the pneumatic actuating element is well protected.

Through retrieval, the national patent publication No. CN 207694440U 3 discloses a pressure-reducing oil-water separation structure in a gas source filter for a purging device, wherein an air outlet pipe and an air inlet pipe are arranged on a filter main body, a flow guide box is arranged at the upper part of an inner cavity of the filter main body, the inner end part of the air inlet pipe is communicated with the right side of the flow guide box, the inner end part of the air outlet pipe penetrates out of the lower end of the flow guide box downwards, a filter element is fixed at the inner end part of the air outlet pipe through a filter element locking mechanism, a hole for the air inlet to flow downwards is arranged at the lower end of the flow guide box, and a floating type drainage oil discharge mechanism is arranged at the lower end of the filter main body; the floating type drainage and oil discharge mechanism is provided with a drainage seat which is fixedly arranged at the bottom of the filter in a penetrating way, a drainage pipe is inserted at the lower end of the drainage seat, and a fixing knob is arranged between the drainage seat and the filter main body.

The existing numerical control machining center air source automatic water diversion water filter has the following defects: 1. only through the arrangement of the filter element, the filter effect on water vapor and oil drops in compressed air is poor, single-time filtration is realized only through the filter element, the density requirement on filter holes in the filter element is high, solid particles are easy to accumulate on the surface of the filter element, the filter element is blocked, and the use is inconvenient; 2. after long-time use, fixed particle impurities are attached to the surface of the filter element and are difficult to remove, and the filter element needs to be manually disassembled and cleaned, thereby wasting time and labor; 3. the water after the separation is accumulated at the bottom of the water cup, the water drainage is required to be manually disassembled, the water drainage is very troublesome, if the automatic water drainage device is arranged, the water drainage can be only realized under the condition of stopping air inlet or small air inflow, however, in the using process, when the water level of accumulated water in the water cup is higher, the effect of automatically distributing water for filtering water cannot be achieved, the water needs to be immediately stopped, the accumulated water is discharged, the continuity of the work is influenced, and the work efficiency is reduced.

Disclosure of Invention

The invention aims to solve the problems of poor water filtering effect, frequent manual cleaning of a filter element and troublesome water drainage, and provides an automatic water diversion water filter of a numerical control machining center air source, which has good water filtering effect, can automatically clean the filter element and is convenient for water drainage.

In order to achieve the purpose, the invention adopts the following technical scheme: an air source automatic water distribution water filter of a numerical control machining center comprises a main body, an air inlet, an air outlet, a water cup, a guide plate and a filter element, wherein the air inlet and the air outlet are oppositely arranged on the side walls of two sides of the main body;

the filter mechanism includes pneumatic wheel, rotary drum, filter screen board and the lantern ring, fixedly connected with lantern ring on the inside wall of filter core upper end, the coaxial rotation of filter screen board is in the lantern ring, the coaxial fixed connection of rotary drum is at the lower surface of filter screen board, the fixed cover of pneumatic wheel is connected on the rotary drum.

In foretell automatic water purifier that divides of numerical control machining center air supply, still install the clean mechanism that is used for cleaing away the solid-state particle impurity in filter core surface on the inside wall of filter core, clean mechanism is including shaking and beat ball and vibrating spring, and is a plurality of shake and beat the ball and be the annular array and arrange on the inside wall of filter core, shake and beat the equal fixedly connected with vibrating spring in ball's upper and lower both ends, two vibrating spring keeps away from the one end of shaking and beating the ball and is fixed with the upper end and the lower extreme lateral wall of filter core respectively, shake and beat the ball and make by permanent magnet material, the end of flabellum is made by magnetic material and is opposite with shaking ball heteropolarly in the pneumatic wheel.

In the automatic water filter for dividing water of the air source of the numerical control machining center, the buoyancy drainage mechanism comprises a buoyancy plate, a connecting shaft, a flat key, a drainage pipe, an upper sealing plate and a lower sealing plate, the buoyancy plate is connected on the inner side wall of the water cup in a sliding manner, the drain pipe penetrates through and is welded and fixed at the bottom of the water cup, the upper end of the connecting shaft extends into the rotary drum, a flat key is fixedly connected to the side wall of the connecting shaft, the connecting shaft is in sliding fit with the rotary drum, a key groove in interference fit with the flat key is arranged in the rotary drum, the lower end of the connecting shaft extends into the drain pipe, the upper sealing plate is connected in the drain pipe in a sealing and sliding way, the upper sealing plate is fixedly connected with the lower end of the connecting shaft, the lower sealing plate is fixedly connected on the inner side wall of the drain pipe, the upper sealing plate and the lower sealing plate are matched and attached to each other, and staggered drain holes are formed in the upper sealing plate and the lower sealing plate.

In the automatic water-dividing water filter of the air source of the numerical control machining center, the buoyancy drainage mechanism further comprises a water conveying wheel, and the water conveying wheel is coaxially fixed with the lower end of the connecting shaft.

In the automatic water filter that divides of numerical control machining center air supply of foretell, buoyancy drainage mechanism still includes the relief valve of installing in the drinking cup bottom, the input of relief valve and the inside intercommunication of drinking cup.

In the automatic water filter for water diversion of the air source of the numerical control machining center, the bottom surface of the water cup is in an arc shape with a downward concave center, and the inner end of the water drain pipe is arranged at the center of the bottom surface of the water cup.

In foretell numerical control machining center air supply automatic water purifier that divides, the lower extreme of filter core is equipped with the sealing mechanism of gas tightness when being used for guaranteeing the drainage, sealing mechanism includes atmospheric pressure box, piston plate, trachea, umbelliform breakwater and gasbag circle, atmospheric pressure box fixed mounting is in the bottom of filter core, the umbelliform breakwater is fixed cup joints outside the atmospheric pressure box, the fixed gasbag circle that has cup jointed on the week lateral wall of umbelliform breakwater, the sealed sliding connection of piston plate is in the atmospheric pressure box, the connecting axle runs through the atmospheric pressure box and slides with the atmospheric pressure box is sealed, the connecting axle runs through the piston plate and with piston plate fixed connection, tracheal one end and atmospheric pressure box intercommunication, the other end and gasbag circle intercommunication.

In foretell automatic water purifier that divides of numerical control machining center air supply, filter plate is the setting of spiral blade form, just filter plate coils around the even extension in axle center of rotary drum, annular array has arranged many guiding gutters, many on the inner circle lateral wall of the lantern ring the equal vertical setting of guiding gutter, the horizontal cross-section of guiding gutter is isosceles trapezoid and sets up, and the guiding gutter is less near the opening of filter plate one side.

Compared with the prior art, the automatic water filter that divides of this numerical control machining center air supply lies in:

1. according to the invention, by arranging the filter element and the filter mechanism, solid particle impurities in air can be filtered through the filter element, the density of filter holes of the filter element can be set to be larger, only the particle impurities can be filtered, the possibility of blockage of the filter element is reduced, the filter screen plate can further filter compressed air, the filter effect is good, water vapor and impurities are blocked by the filter screen plate and are retained on the surface of the filter screen plate, when airflow flows in the filter element, the pneumatic wheel can be driven to rotate, then the filter screen plate is driven to rotate through the rotary drum, under the action of centrifugal force, the water vapor and impurities attached to the surface of the filter screen plate are thrown to the inner wall of the surrounding lantern ring and finally flow downwards to a water cup below, the accumulation of the water vapor and the impurities on the surface of the filter screen plate is avoided, and the filter effect is ensured.

2. According to the invention, the cleaning mechanism is arranged, when the wind wheel rotates, the fan blades of the wind wheel are close to the rapping balls periodically, and the rapping balls are attracted to be close under the action of magnetic attraction force periodically, so that the vibration spring deforms and vibrates to drive the rapping balls to repeatedly flap the side walls of the filter element, solid particle impurities attached to the surface of the filter element are shaken off, manual disassembly and cleaning are not needed, the labor intensity is reduced, and the cleaning device is convenient to use.

3. According to the invention, by arranging the buoyancy drainage mechanism, when the water level in the water cup is higher, the buoyancy plate is pushed to float upwards under the action of buoyancy, the connecting shaft is driven to move upwards, the upper sealing plate is separated from the lower sealing plate, accumulated water in the water cup can be drained from the drainage holes in the upper sealing plate and the lower sealing plate, meanwhile, the connecting shaft moves upwards, the flat key is connected with the rotary drum in a matched manner, the rotary drum drives the connecting shaft to synchronously rotate, then the water conveying wheel is driven to rotate, the accumulated water at the bottom of the water cup is pushed downwards, and the drainage efficiency is improved.

4. According to the invention, by arranging the sealing mechanism, when the water level in the water cup is high, the buoyancy plate drives the connecting shaft to move upwards, then the piston plate is driven to move upwards, air in the air pressure box is extruded into the air bag ring through the air pipe, the air pressure is increased, the air bag ring expands, and the gap between the umbrella-shaped water baffle and the inner wall of the water cup is filled, so that the water accumulation area below the water cup is hermetically isolated from the water filtration area above the water cup, and then, the water can be discharged while the water filter works, the automatic water distribution and drainage are realized, the continuous operation of the work is not influenced, and the work efficiency is improved.

5. According to the invention, the spiral blade-shaped filter screen plate is arranged, and the spiral blade-shaped filter screen plate can sweep over each position in the space in the lantern ring every time the wind wheel rotates for one circle, so that the capacity of the filter screen plate for capturing water vapor and impurities in compressed air is improved, the filtering effect on the compressed air is further improved, the water vapor and the impurities on the surface of the filter screen plate slide into the guide groove under the action of centrifugal force, and the water vapor and the impurities in the guide groove are slightly influenced by airflow due to the smaller opening of the guide groove, so that the water vapor and the impurities can conveniently flow downwards into the water cup.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment 1 of an automatic water-dividing water filter of a gas source of a numerical control machining center provided by the invention;

FIG. 2 is a schematic structural diagram of a filtering mechanism of an embodiment 1 of an automatic water-dividing water filter for a gas source of a numerical control machining center provided by the invention;

FIG. 3 is an enlarged view at A in FIG. 1;

FIG. 4 is a schematic structural diagram of a sealing mechanism of an automatic water-dividing water filter of an air source of a numerical control machining center, which is provided by the invention, in an embodiment 1;

fig. 5 is a schematic structural diagram of a filtering mechanism of an automatic water-dividing water filter of an air source of a numerical control machining center, provided by the invention, in embodiment 2.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Example 1

Referring to the attached figure 1, the automatic water filter for water diversion of the air source of the numerical control machining center comprises a main body 1, an air inlet 11, an air outlet 12, a water cup 2, a guide plate 21 and a filter element 3, wherein the air inlet 11 and the air outlet 12 are oppositely arranged on the side walls of two sides of the main body 1, the water cup 2 is installed at the lower end of the main body 1, the guide plate 21 is arranged on the inner wall of the opening at the upper end of the water cup 2, the inner end of the air inlet 11 is communicated with the opening at the upper end of the water cup 2, the filter element 3 is arranged in the water cup 2, the inner end of the air outlet 12 is fixedly communicated with the opening at the upper end of the filter element 3, the upper end of the filter element 3 is provided with a filtering mechanism 4, and the bottom of the water cup 2 is provided with a buoyancy drainage mechanism 5;

referring to fig. 1-2, specifically, the filtering mechanism 4 includes a pneumatic wheel 41, a rotary drum 42, a filter screen plate 43 and a collar 44, the collar 44 is fixedly connected to the inner side wall of the upper end of the filter element 3, the filter screen plate 43 coaxially rotates in the collar 44, the rotary drum 42 is coaxially and fixedly connected to the lower surface of the filter screen plate 43, the pneumatic wheel 41 is fixedly sleeved on the rotary drum 42, and the pneumatic wheel 41 is composed of at least two blades;

the during operation, filter plate 43 can further filter compressed air, and the filter effect is good, and steam and impurity are blockked to be detained on its surface by filter plate 43, and the air current can drive pneumatic wheel 41 and rotate when flowing in filter core 3, drives filter plate 43 through rotary drum 42 and rotates then, under the centrifugal force effect, with filter plate 43 surface adhesion's steam and impurity get rid of to all around on the inner wall of lantern ring 44 to finally flow downwards to in the drinking cup 2 of below.

Specifically, the inner side wall of the filter element 3 is further provided with a cleaning mechanism 6 for removing solid particle impurities on the surface of the filter element 3, the cleaning mechanism 6 comprises vibrating balls 61 and vibrating springs 62, the vibrating balls 61 are distributed on the inner side wall of the filter element 3 in an annular array, the upper end and the lower end of each vibrating ball 61 are fixedly connected with the vibrating springs 62, one ends of the two vibrating springs 62, which are far away from the vibrating balls 61, are respectively fixed with the side walls of the upper end and the lower end of the filter element 3, the vibrating balls 61 are made of permanent magnet materials, and the tail ends of fan blades in the pneumatic wheel 41 are made of magnetic materials and are opposite to the heteropoles of the vibrating balls 61;

during operation, the pneumatic wheel 41 rotates to be close to the rapping ball 61 periodically, and the periodic attraction is close to the rapping ball 61 under the action of magnetic attraction, so that the vibration spring 62 vibrates in a deformation manner to drive the rapping ball 61 to flap the side wall of the filter element 3 repeatedly, and solid particle impurities attached to the surface of the filter element 3 are shaken off.

Referring to fig. 1-3, specifically, the buoyancy drainage mechanism 5 includes a buoyancy plate 51, a connecting shaft 52, a flat key 53, a drainage pipe 54, an upper sealing plate 55 and a lower sealing plate 56, the buoyancy plate 51 is slidably connected to the inner side wall of the water cup 2, the drainage pipe 54 penetrates and is welded to the bottom of the water cup 2, the upper end of the connecting shaft 52 extends into the rotary drum 42, the flat key 53 is fixedly connected to the side wall of the connecting shaft 52, the connecting shaft 52 is in sliding fit with the rotary drum 42, a key groove in interference fit with the flat key 53 is arranged in the rotary drum 42, the lower end of the connecting shaft 52 extends into the drainage pipe 54, the upper sealing plate 55 is slidably connected in the drainage pipe 54 in a sealing manner, an upper sealing plate 55 is fixedly connected with the lower end of the connecting shaft 52, a lower sealing plate 56 is fixedly connected to the inner side wall of the drain pipe 54, the upper sealing plate 55 and the lower sealing plate 56 are matched and attached to each other, and staggered drain holes are formed in the upper sealing plate 55 and the lower sealing plate 56;

when the accumulated water in the water cup is less, the upper sealing plate 55 is abutted to the lower sealing plate 56 to seal a drain hole in the water cup, the drain pipe 54 is in a closed state, the flat key 53 is positioned outside the key groove, the connecting shaft 52 does not rotate, when the water level in the water cup is higher, the buoyancy plate 51 floats upwards, the upper sealing plate 55 is separated from the lower sealing plate 56, and the accumulated water can be automatically drained downwards through the drain pipe 54.

Furthermore, the buoyancy drainage mechanism 5 further comprises a water delivery wheel 57, the water delivery wheel 57 is coaxially fixed with the lower end of the connecting shaft 52, the flat key 53 is connected with the rotating drum 42 in a matching manner, and the water delivery wheel 57 is driven by the connecting shaft 52 to push water in the drainage pipe 54 downwards in the rotating process, so that the drainage efficiency is improved;

furthermore, the bottom surface of the water cup 2 is in the shape of an arc with a downward concave center, and the inner end of the drain pipe 54 is arranged at the center of the bottom surface of the water cup, so that accumulated water can be collected to the opening at the upper end of the drain pipe 54 at the bottom of the water cup, and the accumulated water can be drained conveniently.

Referring to fig. 4, specifically, the lower end of the filter element 3 is provided with a sealing mechanism 7 for ensuring air tightness during water drainage, the sealing mechanism 7 includes an air pressure box 71, a piston plate 72, an air pipe 73, an umbrella-shaped water baffle 74 and an air bag ring 75, the air pressure box 71 is fixedly installed at the bottom of the filter element 3, the umbrella-shaped water baffle 74 is fixedly sleeved outside the air pressure box 71, the air bag ring 75 is fixedly sleeved on the peripheral side wall of the umbrella-shaped water baffle 74, the piston plate 72 is connected in the air pressure box 71 in a sealing and sliding manner, a connecting shaft 52 penetrates through the air pressure box 71 and slides in a sealing manner with the air pressure box 71, the connecting shaft 52 penetrates through the piston plate 72 and is fixedly connected with the piston plate 72, one end of the air pipe 73 is communicated with the air pressure box 71, the other end of the air pipe is communicated with the air bag ring 75, and a through hole is formed in the air pressure box 71, so that water in the filter element 3 can flow downwards to the bottom of the water cup 2;

a gap is reserved between the peripheral side wall of the umbrella-shaped water baffle 74 and the inner side wall of the water cup 2, so that water can flow downwards to the bottom of the water cup and collect, when the water level in the water cup 2 is high, the buoyancy plate 51 drives the piston plate 72 to move upwards, air in the air pressure box 71 is extruded into the air bag ring 75 through the air pipe 73, the air bag ring 75 expands, the gap between the umbrella-shaped water baffle 74 and the inner wall of the water cup 2 is filled, and a water accumulation area below the water cup 2 is closely isolated from a water filtering area above the water accumulation area.

Further, buoyancy drainage mechanism 5 still includes the relief valve 58 of installing in drinking cup 2 bottom, and the input of relief valve 58 and the inside intercommunication of drinking cup 2, at the drainage in-process, the drinking cup bottom forms airtight space, and ponding can be opened relief valve 58 when being difficult to discharge, the ponding of being convenient for is discharged, and the back is accomplished in the drainage, closes relief valve 58.

The working principle of the embodiment is as follows: compressed air to be filtered enters the main body 1 from the air inlet 11, flows in a high-speed rotating mode along the tangential direction of the guide plate 21 after passing through the guide plate 21, water vapor, oil drops and other impurities mixed in the air are separated out under the centrifugal action, are thrown onto the inner wall of the water cup 2 and flow to the bottom of the water cup, and compressed air with liquid water and oil and larger impurities is removed; then the filter element 3 is further filtered to filter solid particle impurities in the air, the density of filter holes of the filter element 3 can be set to be larger, only the particle impurities are filtered, the possibility of blockage is reduced, the filter screen plate 43 can further filter the compressed air, the filtering effect is good, water vapor and impurities are blocked by the filter screen plate 43 and are retained on the surface of the filter screen plate, when air flows in the filter element 3, the pneumatic wheel 41 can be driven to rotate, then the filter screen plate 43 is driven to rotate through the rotary drum 42, the water vapor and the impurities attached to the surface of the filter screen plate 43 are thrown to the inner wall of the surrounding lantern ring 44 under the action of centrifugal force and finally flow downwards to the lower water cup 2, the water vapor and the impurities are prevented from being accumulated on the surface of the filter screen plate 43, the filtering effect is ensured, and the compressed air is discharged from the exhaust port 12 after being filtered by the filter element 3 and the filter screen plate 43.

When the pneumatic wheel 41 rotates, the fan blades of the pneumatic wheel 41 are close to the rapping balls 61 periodically, and the periodic attraction shakes the rapping balls 61 to be close to the west of the magnetic attraction effect, so that the vibration springs 62 deform and shake to drive the shaking balls 61 to repeatedly flap the side walls of the filter element 3, shake off solid particle impurities attached to the surface of the filter element 3, the manual disassembly is not needed, the labor intensity is reduced, and the use is convenient.

When the water level of the bottom of the water cup 2 is high, under the action of buoyancy, the buoyancy plate 51 is pushed to float upwards, then the connecting shaft 52 is driven to move upwards, then the upper sealing plate 55 is separated from the contact with the lower sealing plate 56, accumulated water in the water cup can be discharged from the water discharge holes in the upper sealing plate 55 and the lower sealing plate 56, meanwhile, the connecting shaft 52 moves upwards, the flat key 53 is connected with the rotary drum 42 in a matched mode, then the rotary drum 42 drives the connecting shaft 52 to rotate synchronously, then the water conveying wheel 57 is driven to rotate, the accumulated water at the bottom of the water cup 2 is pushed downwards, and the water discharge efficiency is improved.

When the water level in the water cup 2 is high, the buoyancy plate 51 drives the connecting shaft 52 to move upwards, then the piston plate 72 is driven to move upwards, the air in the air pressure box 71 is extruded into the air bag ring 75 through the air pipe 73, the air pressure is increased, the air bag ring 75 expands, the gap between the umbrella-shaped water baffle 74 and the inner wall of the water cup 2 is filled, the water accumulation area below the water cup 2 is isolated from the water filtering area above the water cup in a closed mode, then, the water can be drained when the water filter works, automatic water distribution and drainage are achieved, the continuous operation of the work is not affected, and the work efficiency is improved.

Example 2

Referring to fig. 5, the present embodiment is different from embodiment 1 in that: the filter screen plate 43 is arranged in a spiral blade shape, the filter screen plate 43 is uniformly extended and coiled around the axis of the rotary drum 42, a plurality of flow guide grooves 8 are arranged on the side wall of the inner ring of the lantern ring 44 in an annular array manner, the flow guide grooves 8 are all vertically arranged, the horizontal cross section of each flow guide groove 8 is in an isosceles trapezoid shape, and the opening of one side, close to the filter screen plate 43, of each flow guide groove 8 is smaller.

In this embodiment, every time the pneumatic wheel 41 rotates for one circle, the spiral blade-shaped filter screen plate 43 can sweep over every position in the space in the lantern ring 44, the capturing capability of the filter screen plate 43 on the water vapor and impurities in the compressed air is improved, the filtering effect on the compressed air is further improved, the water vapor and the impurities on the surface of the filter screen plate 43 slide into the guide groove 8 under the action of centrifugal force, and the water vapor and the impurities in the guide groove 8 are slightly influenced by the air flow due to the fact that the opening of the guide groove 8 is small, so that the water vapor and the impurities can conveniently flow downwards into the water cup 2.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The automatic water filter for water diversion of the air source of the numerical control machining center is characterized by comprising a main body (1), an air inlet (11), an air outlet (12), a water cup (2), a guide plate (21) and a filter element (3), wherein the air inlet (11) and the air outlet (12) are oppositely arranged on the side walls of the two sides of the main body (1), the water cup (2) is installed at the lower end of the main body (1), the guide plate (21) is arranged on the inner wall of the opening at the upper end of the water cup (2), the inner end of the air inlet (11) is communicated with the opening at the upper end of the water cup (2), the filter element (3) is arranged in the water cup (2), the inner end of the air outlet (12) is fixedly communicated with the opening at the upper end of the filter element (3), a filtering mechanism (4) is arranged at the upper end of the filter element (3), and a buoyancy drainage mechanism (5) is installed at the bottom of the water cup (2);

the filter mechanism (4) comprises a pneumatic wheel (41), a rotary drum (42), a filter screen plate (43) and a lantern ring (44), the lantern ring (44) is fixedly connected to the inner side wall of the upper end of the filter element (3), the filter screen plate (43) coaxially rotates in the lantern ring (44), the rotary drum (42) is coaxially and fixedly connected to the lower surface of the filter screen plate (43), and the pneumatic wheel (41) is fixedly sleeved on the rotary drum (42);

still install on the inside wall of filter core (3) and be used for cleaing away clean mechanism (6) of filter core (3) surface solid state granule impurity, clean mechanism (6) are including shaking and beat ball (61) and vibrating spring (62), and are a plurality of shake and beat ball (61) and be the annular array and arrange on the inside wall of filter core (3), shake and beat the equal fixedly connected with vibrating spring (62) in upper and lower both ends of ball (61), two vibrating spring (62) are kept away from the one end of shaking and are beaten ball (61) and are fixed with the upper end and the lower extreme lateral wall of filter core (3) respectively, shake and beat ball (61) and make by permanent magnet material, the end of flabellum is made by magnetic material and is beaten ball (61) heteropolar relative with shaking in pneumatic wheel (41).

2. The automatic water filter that divides of numerical control machining center air supply of claim 1, characterized in that, buoyancy drainage mechanism (5) includes buoyancy board (51), connecting axle (52), flat key (53), drain pipe (54), upper seal plate (55) and lower seal plate (56), buoyancy board (51) sliding connection is on the inside wall of drinking cup (2), drain pipe (54) runs through and welded fastening in the bottom of drinking cup (2), the upper end of connecting axle (52) extends into rotary drum (42), flat key (53) is fixedly connected with on the lateral wall of connecting axle (52), connecting axle (52) and rotary drum (42) sliding fit, be equipped with the keyway with flat key (53) interference fit in rotary drum (42), the lower extreme of connecting axle (52) extends into drain pipe (54), upper seal plate (55) sealing sliding connection is in drain pipe (54), the upper sealing plate (55) is fixedly connected with the lower end of the connecting shaft (52), the lower sealing plate (56) is fixedly connected to the inner side wall of the drain pipe (54), the upper sealing plate (55) and the lower sealing plate (56) are matched and attached to each other, and staggered drain holes are formed in the upper sealing plate (55) and the lower sealing plate (56).

3. The automatic water filter that divides of numerical control machining center air supply according to claim 2, characterized in that, the buoyancy drainage mechanism (5) still includes water delivery wheel (57), water delivery wheel (57) and the lower extreme of connecting axle (52) are coaxial fixed.

4. The automatic water filter that divides of numerical control machining center air supply of claim 2, characterized in that, buoyancy drainage mechanism (5) still includes pressure release valve (58) installed in drinking cup (2) bottom, the input of pressure release valve (58) communicates with drinking cup (2) inside.

5. The automatic water filter that divides of numerical control machining center air supply of claim 2, characterized in that, the bottom surface of drinking cup (2) is the cambered surface shape setting of central concave downwards, the inner end of drain pipe (54) sets up in the central department of drinking cup bottom surface.

6. The automatic water filter that divides of numerical control machining center air supply of claim 2, characterized in that, the lower extreme of filter core (3) is equipped with the sealing mechanism (7) that is used for guaranteeing the air tightness when draining water, sealing mechanism (7) include atmospheric pressure box (71), piston plate (72), trachea (73), umbelliform breakwater (74) and gasbag circle (75), atmospheric pressure box (71) fixed mounting is in the bottom of filter core (3), umbelliform breakwater (74) fixed cup joint is outside atmospheric pressure box (71), fixed cover is connected with gasbag circle (75) on the peripheral wall of umbelliform breakwater (74), piston plate (72) sealed sliding connection is in atmospheric pressure box (71), connecting axle (52) run through atmospheric pressure box (71) and with atmospheric pressure box (71) sealed sliding, connecting axle (52) run through piston plate (72) and with piston plate (72) fixed connection, one end of the air pipe (73) is communicated with the air pressure box (71), and the other end of the air pipe is communicated with the air bag ring (75).

7. The automatic water filter that divides of numerical control machining center air supply of claim 1, characterized in that, filter plate (43) are the setting of spiral blade form, and filter plate (43) evenly extend around the axle center of rotary drum (42) and coil, many guiding gutter (8) have been arranged to annular array on the inner circle lateral wall of lantern ring (44), many guiding gutter (8) all vertically set up, the horizontal cross-section of guiding gutter (8) is the isosceles trapezoid setting, and the opening that guiding gutter (8) are close to one side of filter plate (43) is less.