CN217250657U - Powder filtering device for electrostatic spraying - Google Patents

Abstract

The utility model belongs to the technical field of the static powder, especially, powder filter equipment for electrostatic spraying, including filtering the box, the inside of filtering the box is provided with filter equipment, filter equipment is including crossing the filter bag, cross the coarse grain that contains in the filter bag filtration electrostatic spraying powder. This powder filter equipment for electrostatic spraying, through setting up filter equipment, can carry out the rapid filtration to electrostatic spraying powder, suction through filter fan, air supply fan blows the powder, can accelerate the powder on the lapping screen to get into and filter the bag and filter the back and get into the collection tank behind the filter fan and collect, the lapping screen can prevent dropping of powder, support the powder, simultaneously can ventilate, the supply-air duct of being convenient for blows the powder, thereby can accelerate the filtration of powder, it can contain great granule to have solved current electrostatic powder in production, current filter equipment can't handle the technical problem of great granule.

Description

Powder filtering device for electrostatic spraying

Technical Field

The utility model relates to an electrostatic powder technical field especially relates to a powder filter equipment for electrostatic spraying.

Background

The electrostatic powder is a coating sprayed by an electrostatic powder spray gun, powder particles are charged with negative charges while being dispersed, the charged powder particles are coated on a grounded object under the action of airflow (or other acting forces such as centrifugal force) and electrostatic attraction, and the grounded object is heated, melted and solidified into a film.

Current electrostatic powder can contain great granule in production, when directly carrying out the spraying, when the heating melts, can cause the film thickness inconsistent, influences beautifully, and current filter equipment passes through the filter sieve and filters, and work efficiency is low, can't grind the big granule under filtering simultaneously, just can grind after needing artifical the collection.

SUMMERY OF THE UTILITY MODEL

Because current electrostatic powder can contain great granule in production, can cause the film thickness inconsistent, influence pleasing to the eye, filter equipment work efficiency who has now simultaneously is low, can't carry out the technical problem handled to great granule, the utility model provides a powder filter equipment for electrostatic spraying.

The utility model provides a powder filtering device for electrostatic spraying, which comprises a filtering box body, wherein the filtering device is arranged in the filtering box body and comprises a filtering bag, and the filtering bag filters coarse particles contained in electrostatic spraying powder;

the grinding device is arranged in the filtering box body and comprises a grinding roller, and the grinding roller is used for grinding coarse particles filtered by the filtering device.

Preferably, the filtering device further comprises a collecting hopper, the lower surface of the collecting hopper is fixedly installed with the upper surface of the filtering bag, the outer surface of the filtering bag is fixedly installed with the inner side wall of the filtering box body, and one end of the collecting hopper penetrates through the upper surface of the filtering box body and is fixedly provided with a filtering fan through a connecting pipeline;

through above-mentioned technical scheme, wherein be equipped with the skeleton in the filter bag and support filtering the bag, prevent when filter fan produces suction, cause and cross the filter bag and warp, suction is crossed the filter bag through filter fan, can filter the electrostatic spraying powder that needs filteration in the filter box through crossing the filter bag, the lateral surface of filtering the box is provided with the feed inlet.

Preferably, the air outlet end of the filter fan is fixedly provided with a collecting tank through a connecting pipeline, and the outer side surface of the collecting tank is fixedly provided with an air outlet filter screen through a groove;

through above-mentioned technical scheme, collect the powder of filter fan suction through the collection tank, the air-out filter screen flow direction outside is passed through to the air of suction, and filterable powder is stopped to be collected in the collection tank, and the fixed intercommunication of inner bottom wall of collection tank has the discharge gate.

Preferably, an accommodating cover is fixedly mounted on the inner side wall of the filtering box body, a grinding net is fixedly mounted on the lower surface of the accommodating cover, a support frame is fixedly mounted on the outer side surface of the filtering box body, an air supply fan is fixedly mounted on the upper surface of the support frame, a three-way valve is fixedly mounted on the air outlet end of the air supply fan, a back-blowing pipeline is fixedly mounted at one end of the three-way valve, one end of the back-blowing pipeline penetrates through the inner side wall of the filtering bag and then extends into the filtering bag, an air supply pipeline is fixedly mounted at the other end of the three-way valve, and the air supply pipeline penetrates through the inner side wall of the filtering box body and then is located on the lower surface of the grinding net;

through above-mentioned technical scheme, carry out the work of supplying air through air supply fan, the wind through air supply fan passes through the connection of three-way valve and gets into the blowback pipeline, can carry out the blowback to crossing the filter bag, will cross the adnexed powder of filter bag surface and blow down, and air supply fan gets into the air supply pipeline through the three-way valve and blows grinding the powder on the net, can accelerate in the powder gets into the filter fan through crossing the filter bag, cooperates with filter fan's suction for the filter speed of powder.

Preferably, the grinding device further comprises a mobile motor, the outer side surface of the mobile motor is fixedly mounted with the outer side surface of the filter box body, one end of an output shaft of the mobile motor penetrates through the inner side wall of the filter box body and is fixedly mounted with a lead screw, one end of the lead screw is fixedly mounted with the inner side wall of the filter box body through a bearing, the outer surface of the lead screw is in threaded connection with a connecting frame, and the lower surface of the connecting frame is in sliding insertion connection with the inner bottom wall of the filter box body;

through above-mentioned technical scheme, rotate the back through the removal motor drive lead screw, can drive the link and remove to the grinding roller that the drive was removed on the frame removes.

Preferably, two sides of the connecting frame are respectively and fixedly installed with two ends of the two grinding rollers through bearings, a driving motor is fixedly installed on the outer side face of the connecting frame, one end of an output shaft of the driving motor is fixedly installed with one end of one grinding roller, and one end of one grinding roller drives the other grinding roller to rotate through a gear set;

through above-mentioned technical scheme, a grinding roller is located the upper surface that grinds the net, and another grinding roller is located the below that grinds the net, through the pressing of two grinding rollers to grinding the net, can grind the powder of big granule.

Preferably, two ends of the grinding roller above the grinding net are rotatably connected with lantern rings, the outer surfaces of the lantern rings are fixedly connected with elastic sealing cloth, and the outer surfaces of the elastic sealing cloth are fixedly connected with the inner wall of the notch of the containing cover;

through above-mentioned technical scheme, run through the notch that holds the cover to being located grinding net top through the elastic sealing cloth and seal, prevent that the powder from getting into the interior diapire that filters the box, the lantern ring rotates with the grinding roller to be connected, does not influence the rotation of grinding roller, and the removal of grinding roller can drive the lantern ring and remove simultaneously, through the elasticity of elastic sealing cloth, can be convenient for the removal of grinding roller.

The utility model provides a beneficial effect does:

1. through setting up filter equipment, can carry out the rapid filtration to electrostatic spraying powder, suction through filter fan, air supply fan blows the powder, can accelerate the powder on the grinding net to get into and filter the bag and filter the back and get into the collection tank and collect through filter fan back, the grinding net can prevent dropping of powder, support the powder, simultaneously can ventilate, the supply air duct of being convenient for blows the powder, thereby can accelerate the filtration of powder, it can contain great granule to have solved current electrostatic powder in production, can cause the film thickness inconsistent, the influence is pleasing to the eye, filter equipment work efficiency current simultaneously is low, can't carry out the technical problem handled to great granule.

2. By arranging the grinding device, large granular powder filtered by the filtering device can be ground and filtered again, the filtering speed is increased, the two grinding rollers press the upper surface and the lower surface of the grinding net to grind the left large-particle powder, the connecting frame on the grinding roller is driven to move by the rotation of the screw rod, the grinding roller can move on the grinding net while rotating, the large-particle powder can be quickly ground into powder by the cooperation of the two grinding rollers, thereby increasing the filtering speed, improving the working efficiency of filtering, avoiding the need of filtering again after collecting and grinding large-particle powder, solving the problems that the existing electrostatic powder contains larger particles in the production, the thickness of a formed film is inconsistent, the appearance is influenced, meanwhile, the existing filtering device has low working efficiency and cannot treat larger particles.

Drawings

Fig. 1 is a schematic view of a powder filtering device for electrostatic spraying according to the present invention;

FIG. 2 is a perspective view of a filter bag structure of the powder filtering device for electrostatic spraying according to the present invention;

FIG. 3 is a perspective view of a back-flushing pipeline structure of the powder filtering device for electrostatic spraying according to the present invention;

fig. 4 is a perspective view of the structure of the air supply duct of the powder filtering device for electrostatic spraying according to the present invention;

fig. 5 is a perspective view of a grinding roller structure of the powder filtering device for electrostatic spraying according to the present invention.

In the figure: 1. a filter box body; 2. a filter bag; 21. a collecting hopper; 22. a filtering fan; 23. a collection tank; 24. an air outlet filter screen; 3. a containing cover; 31. grinding the net; 32. a support frame; 33. an air supply fan; 34. a three-way valve; 35. a blowback pipeline; 36. an air supply duct; 4. a moving motor; 41. a screw rod; 42. a connecting frame; 43. grinding the roller; 44. a drive motor; 45. a collar; 46. elastic sealing cloth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, a powder filtering device for electrostatic spraying comprises a filtering box body 1, wherein the filtering device is arranged in the filtering box body 1, the filtering device comprises a filtering bag 2, and the filtering bag 2 filters coarse particles contained in electrostatic spraying powder;

furthermore, the filtering device also comprises a collecting hopper 21, the lower surface of the collecting hopper 21 is fixedly installed with the upper surface of the filtering bag 2, the outer surface of the filtering bag 2 is fixedly installed with the inner side wall of the filtering box body 1, and one end of the collecting hopper 21 penetrates through the upper surface of the filtering box body 1 and is fixedly provided with a filtering fan 22 through a connecting pipeline;

wherein being equipped with the skeleton in filtering bag 2 and supporting filtering bag 2, prevent when filter fan 22 produces suction, cause and filter bag 2 deformation, filter bag 2 through filter fan 22 and aspirate, can filter box 1 interior electrostatic spraying powder that needs to filter through filtering bag 2 and filter, the lateral surface of filtering box 1 is provided with the feed inlet.

Further, a collecting tank 23 is fixedly mounted at the air outlet end of the filtering fan 22 through a connecting pipeline, and an air outlet filter screen 24 is fixedly mounted on the outer side surface of the collecting tank 23 through a groove;

the powder sucked by the filter fan 22 is collected through the collecting tank 23, the sucked air flows to the outside through the air outlet filter screen 24, the filtered powder is blocked in the collecting tank 23 for collection, and the inner bottom wall of the collecting tank 23 is fixedly communicated with a discharge hole.

Further, a containing cover 3 is fixedly installed on the inner side wall of the filtering box body 1, a grinding net 31 is fixedly installed on the lower surface of the containing cover 3, a supporting frame 32 is fixedly installed on the outer side surface of the filtering box body 1, an air supply fan 33 is fixedly installed on the upper surface of the supporting frame 32, a three-way valve 34 is fixedly installed at the air outlet end of the air supply fan 33, a back-blowing pipeline 35 is fixedly installed at one end of the three-way valve 34, one end of the back-blowing pipeline 35 penetrates through the inner side wall of the filtering bag 2 and then extends into the filtering bag, an air supply pipeline 36 is fixedly installed at the other end of the three-way valve 34, and the air supply pipeline 36 penetrates through the inner side wall of the filtering box body 1 and then is located on the lower surface of the grinding net 31;

carry out the work of supplying air through air supply fan 33, the wind through air supply fan 33 gets into blowback pipeline 35 through the connection of three-way valve 34, can carry out the blowback to crossing filter bag 2, will cross the adnexed powder of filter bag 2 surface and blow down, air supply fan 33 gets into air supply pipeline 36 through three-way valve 34 and blows the powder on grinding net 31, can accelerate the powder and get into in filter fan 22 through crossing filter bag 2, cooperate with filter fan 22's suction, accelerate the filter rate of powder.

Through setting up filter equipment, can carry out the rapid filtration to electrostatic spraying powder, suction through filter fan 22, air supply fan 33 blows the powder, can accelerate the powder on the grinding net 31 to get into and filter bag 2 and filter the back and enter into collection tank 23 and collect through filter fan 22 back, grinding net 31 can prevent dropping of powder, support the powder, simultaneously can ventilate, the supply-air duct 36 of being convenient for blows the powder, thereby can accelerate the filtration of powder, it can contain great granule to have solved current electrostatic powder in production, can cause the film thickness nonconformity, influence pleasing to the eye, filter equipment work efficiency that simultaneously current is low, can't handle the technical problem to great granule.

A grinding device is arranged in the filtering box body 1 and comprises a grinding roller 43, and the grinding roller 43 grinds coarse particles filtered by the filtering device;

furthermore, the grinding device also comprises a mobile motor 4, the outer side surface of the mobile motor 4 is fixedly installed with the outer side surface of the filter box body 1, one end of an output shaft of the mobile motor 4 penetrates through the inner side wall of the filter box body 1 and then is fixedly installed with a lead screw 41, one end of the lead screw 41 is fixedly installed with the inner side wall of the filter box body 1 through a bearing, the outer surface of the lead screw 41 is in threaded connection with a connecting frame 42, and the lower surface of the connecting frame 42 is in sliding insertion connection with the inner bottom wall of the filter box body 1;

after the screw rod 41 is driven to rotate by the moving motor 4, the connecting frame 42 can be driven to move, so that the grinding roller 43 on the moving frame is driven to move.

Furthermore, two sides of the connecting frame 42 are respectively fixedly installed with two ends of two grinding rollers 43 through bearings, the outer side surface of the connecting frame 42 is fixedly installed with a driving motor 44, one end of an output shaft of the driving motor 44 is fixedly installed with one end of one grinding roller 43, and one end of one grinding roller 43 drives the other grinding roller 43 to rotate through a gear set;

one grinding roller 43 is located on the upper surface of the grinding net 31, the other grinding roller 43 is located below the grinding net 31, large-particle powder can be crushed by pressing the grinding net 31 by the two grinding rollers 43, and the driving motor 44 penetrates the outer side surface of the filter box 1.

Furthermore, two ends of the grinding roller 43 above the grinding net 31 are rotatably connected with lantern rings 45, the outer surfaces of the lantern rings 45 are fixedly connected with elastic sealing cloth 46, and the outer surfaces of the elastic sealing cloth 46 are fixedly connected with the inner wall of the groove opening of the containing cover 3;

seal through the notch that the sealed cloth 46 of elasticity runs through the holding cover 3 to being located grinding net 31 top, prevent that the powder from getting into the interior diapire of filtering box 1, lantern ring 45 rotates with grinding roller 43 to be connected, does not influence the rotation of grinding roller 43, and the removal of grinding roller 43 can drive lantern ring 45 simultaneously and remove, through the elasticity of the sealed cloth 46 of elasticity, can be convenient for the removal of grinding roller 43.

By arranging the grinding device, large granular powder filtered by the filtering device can be ground and filtered again, the filtering speed is increased, the upper and lower surfaces of the grinding net 31 are pressed by the two grinding rollers 43, so that the large-particle powder left behind can be ground, the connecting frame 42 on the grinding roller 43 is driven to move by the rotation of the screw rod 41, so that the grinding roller 43 can move on the grinding net 31 while rotating, the two grinding rollers 43 can be matched to quickly grind large-particle powder into powder, thereby accelerating the filtering speed, improving the working efficiency of filtering, avoiding the need of filtering again after collecting and grinding large-particle powder, solving the problems that the existing electrostatic powder contains larger particles in the production, the thickness of the formed film is inconsistent, the appearance is influenced, meanwhile, the existing filtering device has low working efficiency and cannot treat larger particles.

The working principle is as follows: after powder needing to be filtered is poured into the cover 3 in the filtering box body 1 through the feeding hole, the filtering fan 22 and the air supply fan 33 are started, the filtering fan 22 sucks, the air supply fan 33 sucks powder, the grinding net 31 is blown through the air supply pipeline 36, the suction force generated by the filtering fan 22 and the blowing of the air supply fan 33 are used, the powder enters the collecting hopper 21 through the filtering bag 2 and then enters the collecting tank 23 through the filtering fan 22, the sucked air is discharged through the air outlet filtering net 24, and the larger-particle powder cannot be retained in the filtering box body 1 through the filtering bag 2;

through rotating three-way valve 34, stop filter fan 22, make blowback pipeline 35 and air supply fan 33 communicate the back, the wind that air supply fan 33 produced blows out through blowback pipeline 35, blow to crossing filter bag 2, the powder of crossing filter bag 2 surface is blown down and is being held in cover 3, start moving motor 4, moving motor 4 drives lead screw 41 and rotates, link 42 can drive two grinding rollers 43 and remove, driving motor 44 removes simultaneously, it rotates to drive a grinding roller 43, pivoted grinding roller 43 passes through the gear train and drives another grinding roller 43 direction and rotate, the cooperation of two grinding rollers 43 grinds powder to the powder of big granule on grinding net 31, the grinding roller 43 that lies in grinding net 31 upper surface simultaneously rotates and can drive lantern ring 45 and remove, make the shrink of elastic sealing cloth 46 one end, one end is stretched.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides a powder filter equipment for electrostatic spraying, includes and filters box (1), its characterized in that: a filtering device is arranged in the filtering box body (1), the filtering device comprises a filtering bag (2), and the filtering bag (2) filters coarse particles contained in the electrostatic spraying powder;

the inside of filtering box (1) is provided with grinder, grinder includes grinding roller (43), grinding roller (43) are to the coarse grain work of grinding after the filter equipment filters.

2. The powder filtering device for electrostatic painting according to claim 1, wherein: the filter equipment still includes collects fill (21), collect the lower surface of fighting (21) with the last fixed surface who crosses filter bag (2) installs, cross the surface of filter bag (2) with the inside wall fixed mounting who filters box (1), the one end of collecting fighting (21) is run through there is filter fan (22) through connecting tube fixed mounting behind the upper surface of filtering box (1).

3. The powder filtering device for electrostatic painting according to claim 2, wherein: the air-out end of filter fan (22) has holding tank (23) through connecting tube fixed mounting, the lateral surface of holding tank (23) has air-out filter screen (24) through recess fixed mounting.

4. The powder filter device for electrostatic painting according to claim 1, wherein: the inside wall fixed mounting who filters box (1) has and holds cover (3), the lower fixed surface who holds cover (3) installs and grinds net (31), the lateral surface fixed mounting who filters box (1) has support frame (32), the last fixed surface of support frame (32) installs air supply fan (33), the air-out fixed mounting of air supply fan (33) has three-way valve (34), the one end fixed mounting of three-way valve (34) has blowback pipeline (35), the one end of blowback pipeline (35) is run through extend to inside behind the inside wall of filter bag (2), the other end fixed mounting of three-way valve (34) has supply-air duct (36), supply-air duct (36) run through be located behind the inside wall of filter box (1) the lower surface of grinding net (31).

5. The powder filtering device for electrostatic painting according to claim 1, wherein: grinder still includes mobile motor (4), the lateral surface of mobile motor (4) with the lateral surface fixed mounting who filters box (1), the output shaft one end of mobile motor (4) is run through fixed mounting has lead screw (41) behind the inside wall of filtering box (1), the one end of lead screw (41) pass through the bearing with the inside wall fixed mounting who filters box (1), the surface threaded connection of lead screw (41) has link (42), the lower surface of link (42) with the interior diapire slip grafting of filtering box (1).

6. The powder filtering device for electrostatic painting according to claim 5, wherein: the grinding roll grinding device is characterized in that two sides of the connecting frame (42) are fixedly installed at two ends of the two grinding rolls (43) through bearings respectively, a driving motor (44) is fixedly installed on the outer side face of the connecting frame (42), one end of an output shaft of the driving motor (44) is fixedly installed at one end of one grinding roll (43), and one end of one grinding roll (43) drives the other grinding roll (43) to rotate through a gear set.

7. The powder filtering device for electrostatic painting according to claim 4, wherein: the grinding device is characterized in that two ends of the grinding roller (43) above the grinding net (31) are rotatably connected with sleeve rings (45), the outer surface of each sleeve ring (45) is fixedly connected with elastic sealing cloth (46), and the outer surface of each elastic sealing cloth (46) is fixedly connected with the inner wall of a groove opening of the containing cover (3).

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