CN114798439A

CN114798439A - Epoxy polyester powder coating processing equipment and epoxy polyester powder coating processing technology

Info

Publication number: CN114798439A
Application number: CN202210086544.9A
Authority: CN
Inventors: 胡军芬; 史开镕
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-07-29

Abstract

The invention discloses an epoxy polyester powder coating processing device and an epoxy polyester powder coating processing technology, which belong to the technical field of epoxy polyester coating screening devices and comprise a processing table, wherein the bottom of the processing table is provided with a damping base, the top of the processing table is provided with a screening roller, the side wall of one end of the screening roller is provided with a feeding port, the top of the processing table and the other end of the screening roller are provided with a bracket, the top of the bracket is provided with a protective shell, one side of the protective shell and the bracket are provided with a driving motor, the top of the screening roller is provided with an air valve close to the bracket, the screening roller is internally and rotatably provided with an inner screening cylinder, the multiple screening function can be realized, powder with different particles inside can be distinguished, rough powder can be circularly put into the roller, and meanwhile, the circulating air flow avoids the powder from being sticky, the screening quality is improved.

Description

Epoxy polyester powder coating processing equipment and epoxy polyester powder coating processing technology

Technical Field

The invention relates to the technical field of epoxy polyester coating screening equipment, in particular to epoxy polyester powder coating processing equipment and an epoxy polyester powder coating processing technology.

Background

Epoxy polyester type powder coatings are one type of thermosetting powder coatings.

The epoxy polyester type powder coating is mainly prepared from epoxy resin and polyester resin serving as main raw materials, and has respective unique properties, so that the produced coating has excellent leveling property, decoration property, mechanical property and strong corrosion resistance, and is widely applied to coating of various indoor metal products, wherein the epoxy polyester type powder coating is mainly used for surface coating in industries such as automobiles, household appliances, metal furniture, instruments and meters, indoor fitness sports equipment, radiators and the like.

The rotary screening device for producing the epoxy polyester powder coating can be used for producing the epoxy polyester powder coating, in particular to a rotary screening device for producing the epoxy polyester powder coating with Chinese patent authorization publication No. CN 208757991U, which is additionally provided with an auger conveyor, and conveys powder through a feed pipe sealed by the auger conveyor, thereby solving the problem that dust is easy to raise in the feeding process; the fan and the collecting hopper are additionally arranged, and dust raised during screening is collected through the fan and the collecting hopper, so that the problem of dust during screening is solved, the dust is recovered, and the waste of powder coating is reduced; the brush is additionally arranged above the drum screen, and the roller screen rolling brush scrapes and brushes the screen mesh, so that the problem that screened impurities block mesh holes in the drum screen is solved.

As described in the above comparative example, the rotary screening apparatus generally adopts the form of a rotary drum screen hole, the rotary drum screen is a rotary drum body made of screen mesh or screen plate, and can be used for continuous screening, the operation is stable, generally the retention time of the material is related to the inclination and the rotating speed, the rotating speed can not be too high, and should be less than the maximum rotating speed value, this is the condition of the rotary drum screen screening, it is constructed as a slightly inclined rotary drum, the drum surface is the screen mesh, the material is manually added into the drum during the screening, the fine material passes through the screen mesh and is discharged, the coarse material moves along the inclined surface of the drum, and is discharged at the outlet end, but when the storage time of the epoxy polyester type powder coating is too long, the interior of the coating is easy to agglomerate, the quality inspection of the product needs to be carried out again, in most of the prior art, the agglomerated powder is separated by adopting the rotary drum screening, but the inner coarse material and the fine material can not be more finely distinguished by the simple use of the rotary drum screening, and the reciprocating circular screening is carried out, so that the qualified rate of the discharged powder is reduced.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide epoxy polyester powder coating processing equipment which can realize the function of multiple screening, distinguish powder with different particles inside, circularly put rough powder into a cylinder, and simultaneously circulate air flow to avoid the adhesion of the powder and improve the screening quality.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides an epoxy polyester powder coating processing equipment, includes the processing platform, vibration damping mount is installed to the bottom of processing platform, the screening cylinder is installed at the top of processing platform, the pan feeding mouth is installed to the one end lateral wall of screening cylinder, the top of processing platform and the other end that is located the screening cylinder install the support, protecting sheathing is installed at the top of support, one side of protecting sheathing just is located the support and is provided with driving motor, the top of screening cylinder is close to the support mounting and has the pneumatic valve, the inside rotation of screening cylinder installs the screening inner tube.

Furthermore, one side that processing bench lies in the screening inner tube is provided with the air delivery pump, the gas tank is installed to the gas delivery end of air delivery pump, be provided with a plurality of gas-supply pipes on the gas tank, it is a plurality of the output port of gas-supply pipe all sets up on the lateral wall of screening cylinder.

Further, the internally mounted of screening cylinder has first support ring, first support ring is close to the pan feeding mouth installation, has seted up a plurality of through-holes on the first support ring, and is a plurality of the through-hole all corresponds the gas-supply pipe installation, installs the transmission pipe between the inner wall of screening cylinder and the first support ring, transmission pipe one end and gas-supply pipe fixed connection, the other end and through-hole fixed connection, the second support ring is installed to the inside other end of screening cylinder, and the inside of screening cylinder is close to the second support ring and installs the filter ring board.

Further, first support ring forms bearing structure with the second support ring, bearing structure's interior anchor ring is all rolled to be installed and is fallen to hinder the ball, bearing structure's interior anchor ring parcel falls to hinder the ball and is provided with the holder, the holder sets up to the arc, one side lateral wall that the second support ring deviates from the filter ring board is provided with the anticreep ring.

Furthermore, the screening inner cylinder comprises a cylinder body, a first bearing ring and a second bearing ring are respectively arranged on two sides of the outer annular surface of the cylinder body, sliding grooves are formed in the annular side walls of the first bearing ring and the second bearing ring, a positioning supporting plate is arranged at one end of the cylinder body close to the second bearing ring, and a limiting ring groove is formed in one side wall, facing the second supporting ring, of the positioning supporting plate.

Further, the inner ring surface of the cylinder body is spirally provided with stirring sheets.

Further, first support ring, second support ring and first carrier ring, second carrier ring correspond the setting to first support ring, second support ring are through falling to hinder ball and first carrier ring, second carrier ring sliding connection, the anticreep ring corresponds the setting with spacing annular, and the anticreep ring setting is in the inside of spacing annular.

Further, driving motor's output is provided with umbelliform gear A, the dwang is installed in protecting sheathing's internal rotation, the vertical inside at protecting sheathing of installing of dwang, umbelliform gear B is all installed, two at the both ends of dwang umbelliform gear B deviates from the installation each other, umbelliform gear A is connected with the meshing of the top umbelliform gear B of dwang, the internally mounted of screening inner tube has the support bull stick, the tip of supporting the bull stick installs umbelliform gear C, umbelliform gear C is connected with the meshing of the bottom umbelliform gear B of dwang, umbelliform gear A is connected with umbelliform gear C transmission through umbelliform gear B.

Furthermore, a coarse filtering outlet and a fine filtering outlet are arranged on the side wall of the processing table, the coarse filtering outlet is arranged close to the transmission pipe, and the fine filtering outlet is arranged close to the second support ring.

Further, the inner chamber bottom of screening cylinder is provided with right angle triangular platform, the right angle of right angle triangular platform is towards the fine filtration export setting, the right angle triangular platform is close to the fine filtration export and is provided with the slope of raising upward the slope platform, the domatic setting of slope of raising upward the slope platform is the cambered surface, install on the slope of raising upward the slope platform one side of filtering the crown plate, the bottom of screening cylinder is and be located the slope of raising upward the slope platform and be provided with vibrating motor.

An epoxy polyester powder coating processing technology, which uses the epoxy polyester powder coating processing equipment as claimed in any one of claims 1 to 8.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme, one side at the screening inner tube sets up the air transmission pump, the air transmission pump passes through the gas tank and is connected with the gas-supply pipe, when starting the air transmission pump, to the inside drum gas of screening inner tube, and set up a plurality of air flues simultaneously, at not equidirectional air transmission, make inside powder pour into along with the air current on the filter ring board, through constantly pressurizeing air current disturbance simultaneously, the tiny particle powder passes the filter ring board, great granule powder interception is in one side of filter ring board, reach the filterable effect of air current guide powder, the air current flows simultaneously and can exchanges away the moisture that accumulates in the powder, play the effect of loose powder.

(2) According to the scheme, materials are conveyed into the barrel through the material inlet, the driving motor drives the supporting rotating rod to rotate, the supporting rotating rod drives the barrel to rotate, the barrel generates centrifugal force when rotating, the powder is scattered, meanwhile, partial powder is centrifugally separated out of the barrel through sieve holes, larger material blocks collide with the powder in the barrel, the screening effect is improved, preliminary coarse screening is formed, and the separated powder is blown through the air passage and has the effect of secondary filtration;

(3) this scheme, centrifugal cylinder body sieve and air current screening cooperate and use, reach the function of multiple screening, distinguish the powder of inside different size granules, can circulate the powder of roughcast and put in inside the barrel, and circulating air avoids the powder to glue glutinous simultaneously, improves the screening quality.

(4) This scheme, inner chamber bottom through setting up the screening cylinder sets up right angle triangle platform, when the blast air blows, the powder filtration of will granule outside filtering the ring board, it is difficult palirrhea to make the powder of granule, influence filtration efficiency, the coarse filtration export is closed this moment, the inside of screening cylinder is stayed to the powder of great caking, when filtering the end, open the window of coarse filtration export, the powder of great caking rolls down the discharge from the dead weight on the inclined plane of right angle triangle platform, collect again and put in to the bucket, better circulation screening function has.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the separating structure of the screening drum and the screening inner cylinder of the present invention;

FIG. 3 is a schematic cross-sectional view of the screening drum and the screening inner cylinder of the present invention;

FIG. 4 is a schematic view of the drive end configuration of the screening drum of the present invention;

FIG. 5 is a schematic view of the engaging and connecting structure of the rotating rod and the supporting rotating rod of the present invention;

fig. 6 is an enlarged detail view of a in fig. 3 according to the present invention.

The reference numbers in the figures illustrate:

1. a processing table; 2. a damping mount; 3. a screening drum; 4. a feeding port; 5. a support; 6. a protective housing; 7. a drive motor; 8. an air valve; 9. screening the inner cylinder; 10. an air delivery pump; 11. a gas tank; 12. a gas delivery pipe; 13. a first support ring; 14. a through hole; 15. a conveying pipe; 16. a second support ring; 17. a filter ring plate; 18. resistance reducing balls; 19. a holder; 20. the anti-drop ring; 21. a barrel; 2101. a stirring sheet; 22. a first load ring; 23. a second load ring; 24. a chute; 25. positioning a supporting plate; 26. a limiting ring groove; 27. an umbrella gear A; 28. rotating the rod; 29. an umbrella gear B; 30. supporting the rotating rod; 31. an umbrella gear C; 32. a coarse filtration outlet; 33. and (4) a fine filtration outlet.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is to be understood that the embodiments described are merely exemplary embodiments, rather than exemplary embodiments, and that all other embodiments may be devised by those skilled in the art without departing from the scope of the present invention.

Example 1:

please refer to fig. 1-6, an epoxy polyester powder coating processing equipment, including processing platform 1, vibration damping mount 2 is installed to the bottom of processing platform 1, screening cylinder 3 is installed at the top of processing platform 1, pan feeding mouth 4 is installed to the one end lateral wall of screening cylinder 3, support 5 is installed at the top of processing platform 1 and the other end that is located screening cylinder 3, protective housing 6 is installed at the top of support 5, one side of protective housing 6 is provided with driving motor 7 just to be located support 5, the top of screening cylinder 3 is close to support 5 and is installed pneumatic valve 8, the inside rotation of screening cylinder 3 is installed and is sieved inner tube 9, install vibration damping mount 2 in the bottom of processing platform 1, the effect of steady screening cylinder 3 has the shock attenuation.

Referring to fig. 1, an air delivery pump 10 is disposed on one side of the screening inner cylinder 9 on the processing table 1, an air box 11 is mounted at an air delivery end of the air delivery pump 10, a plurality of air delivery pipes 12 are disposed on the air box 11, and output ports of the plurality of air delivery pipes 12 are disposed on the side wall of the screening drum 3.

Referring to fig. 2, a first supporting ring 13 is installed inside the screening drum 3, the first supporting ring 13 is installed near the feeding port 4, a plurality of through holes 14 are formed in the first supporting ring 13, the plurality of through holes 14 are all installed corresponding to the air pipes 12, a transmission pipe 15 is installed between the inner wall of the screening drum 3 and the first supporting ring 13, one end of the transmission pipe 15 is fixedly connected with the air pipes 12, the other end of the transmission pipe is fixedly connected with the through holes 14, a second supporting ring 16 is installed at the other end of the inside of the screening drum 3, a filtering ring plate 17 is installed near the second supporting ring 16 inside the screening drum 3, an air transmission pump 10 is arranged on one side of the screening inner cylinder 9, the air transmission pump 10 is connected with the air pipes 12 through an air box 11, when the air transmission pump 10 is started, air is blown into the screening inner cylinder 9, and a plurality of air passages are simultaneously arranged for transmitting air in different directions, so that the inner powder flows into the filtering ring plate 17 along with the air flow, through the continuous pressurization and airflow disturbance, small-particle powder passes through the filtering ring plate 17, larger-particle powder is intercepted on one side of the filtering ring plate 17, the effect of filtering the powder by guiding the airflow is achieved, and meanwhile, moisture accumulated in the powder can be exchanged by airflow flowing, so that the effect of loosening the powder is achieved.

Referring to fig. 3, the first support ring 13 and the second support ring 16 form a support structure, resistance reducing balls 18 are respectively mounted on the inner annular surface of the support structure in a rolling manner, a retainer 19 is disposed on the inner annular surface of the support structure and wraps the resistance reducing balls 18, the retainer 19 is arc-shaped, and an anti-drop ring 20 is disposed on the side wall of the second support ring 16 away from the filter ring plate 17.

Referring to fig. 3, the sieving inner cylinder 9 includes a cylinder 21, a first bearing ring 22 and a second bearing ring 23 are respectively disposed on two sides of an outer annular surface of the cylinder 21, a sliding groove 24 is disposed on each of annular side walls of the first bearing ring 22 and the second bearing ring 23, a positioning support plate 25 is disposed at one end of the cylinder 21 near the second bearing ring 23, a limit ring groove 26 is disposed on a side wall of the positioning support plate 25 facing the second support ring 16, a stirring plate 2101 is spirally disposed on an inner annular surface of the cylinder 21, as shown in the figure, a circular hole shadow filling area on the cylinder 21 is a mesh screen, a non-circular hole shadow filling area on the cylinder 21 is a non-porous solid, material is fed into the cylinder 21 through a feeding port 4, a driving motor 7 drives a supporting rotating rod 30 to rotate, the supporting rotating rod 30 drives the cylinder 21 to rotate, the cylinder 21 generates centrifugal force when rotating, powder is scattered through the mesh screen, and a part of the powder is centrifugally separated out of the cylinder 21 through the screen, great material piece is in inside collision crocus, improves the screening effect, forms preliminary coarse screening, and the powder after the separation has secondary filter's effect through the air flue air-blast, and centrifugal barrel 21 screening cooperatees with the air current screening and uses, reaches the function of multiple screening, distinguishes the powder of inside different size granule, and the powder that can circulate to put in at barrel 21 inside with roughly, and circulating air avoids the powder to glue simultaneously glutinous, improves the screening quality.

Referring to fig. 3, the first support ring 13 and the second support ring 16 are disposed corresponding to the first bearing ring 22 and the second bearing ring 23, the first support ring 13 and the second support ring 16 are slidably connected to the first bearing ring 22 and the second bearing ring 23 through resistance-reducing balls 18, the anti-slip ring 20 is disposed corresponding to the limiting ring groove 26, and the anti-slip ring 20 is disposed inside the limiting ring groove 26.

Referring to fig. 4-5, an output end of the driving motor 7 is provided with a bevel gear a27, a rotating rod 28 is rotatably installed inside the protective housing 6, the rotating rod 28 is vertically installed inside the protective housing 6, two ends of the rotating rod 28 are both provided with a bevel gear B29, two bevel gears B29 are installed in a manner of deviating from each other, a bevel gear a27 is engaged with a top bevel gear B29 of the rotating rod 28, a supporting rotating rod 30 is installed inside the screening inner cylinder 9, an end of the supporting rotating rod 30 is provided with a bevel gear C31, the bevel gear C31 is engaged with a bottom bevel gear B29 of the rotating rod 28, and the bevel gear a27 is in transmission connection with the bevel gear C31 through the bevel gear B29.

Referring to fig. 4-5, the side wall of the processing table 1 is provided with a coarse filtration outlet 32 and a fine filtration outlet 33, the coarse filtration outlet 32 being disposed adjacent to the transport tube 15, and the fine filtration outlet 33 being disposed adjacent to the second support ring 16.

Referring to fig. 4-5, a right-angle triangular table 301 is disposed at the bottom of the inner cavity of the screening drum 3, a right angle of the right-angle triangular table 301 is disposed toward the fine filtering outlet 33, a ramp 302 is disposed at the bottom of the right-angle triangular table 301 near the fine filtering outlet 33, a slope of the ramp 302 is set to be a cambered surface, one side of the filtering ring plate 17 is mounted on the ramp 302, a vibrating motor is disposed at the bottom of the screening drum 3 and on the ramp 302, the right-angle triangular table 301 is disposed at the bottom of the inner cavity of the screening drum 3, when the air is blown, the small-particle powder is filtered out of the filtering ring plate 17, so that the small-particle powder is not easy to flow backwards, and the filtering efficiency is affected, at this time, the coarse filtering outlet 32 is closed, the larger agglomerated powder is left inside the screening drum 3, when the filtering is finished, the window of the coarse filtering outlet 32 is opened, and the larger agglomerated powder rolls down and is discharged from the inclined surface of the right-angle triangular table 301, and then collected and put into a barrel, thereby having better circular screening function.

When in use: an air conveying pump 10 is arranged on one side of a screening inner cylinder 9, the air conveying pump 10 is connected with an air conveying pipe 12 through an air box 11, when the air conveying pump 10 is started, air is blown into the screening inner cylinder 9, a plurality of air passages are arranged at the same time, air is conveyed in different directions, so that internal powder flows onto a filtering annular plate 17 along with air flow, the air flow is disturbed through continuous pressurization, small-particle powder penetrates through the filtering annular plate 17, larger-particle powder is intercepted on one side of the filtering annular plate 17, the effect of air flow guiding powder filtering is achieved, meanwhile, moisture accumulated in the powder can be exchanged through air flow, the effect of loosening the powder is achieved, the material is conveyed into a cylinder body 21 through a material inlet 4, a driving motor 7 drives a supporting rotating rod 30 to rotate, the supporting rotating rod 30 drives the cylinder body 21 to rotate, the cylinder body 21 generates centrifugal force during rotation, the powder is sprayed, and meanwhile, partial powder is centrifugally separated out of the cylinder body 21 through sieve holes, the bigger material block collides the crocus in the inside, improve the screening effect, form preliminary coarse screening, the powder after the separation is blown away air through the air flue, have the effect of secondary filtration, centrifugal cylinder 21 screening and air current screening cooperate and use, reach the function of multiple screening, distinguish the powder of inside different size granules, can circulate the powder of roughly throwing in the cylinder 21 inside, the circulating air current avoids the powder to glue simultaneously, improve the screening quality, through setting up right-angled triangle platform 301 in the inner chamber bottom of screening cylinder 3, when the air current blows, filter the powder of small granule outside filtering ring board 17, make the powder of small granule difficult palirrhea, influence filtration efficiency, coarse filtration export 32 closes at this moment, the inside of screening cylinder 3 is stayed to the powder of great caking, when filtering, open the window of coarse filtration export 32, the powder of great caking rolls off from the inclined plane of right-angled triangle platform 301 by oneself and discharges, and then collected and put into a barrel, thereby having better circulating screening function.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an epoxy polyester powder coating processing equipment, includes processing platform (1), vibration damping mount (2), its characterized in that are installed to the bottom of processing platform (1): the processing table is characterized in that a screening roller (3) is installed at the top of the processing table (1), a feeding port (4) is installed on the side wall of one end of the screening roller (3), a support (5) is installed at the top of the processing table (1) and located at the other end of the screening roller (3), a protective shell (6) is installed at the top of the support (5), a driving motor (7) is arranged on one side of the protective shell (6) and located on the support (5), an air valve (8) is installed at the top of the screening roller (3) close to the support (5), and a screening inner cylinder (9) is rotatably installed inside the screening roller (3);

the side wall of the processing table (1) is provided with a coarse filtration outlet (32) and a fine filtration outlet (33), the coarse filtration outlet (32) is arranged close to the conveying pipe (15), and the fine filtration outlet (33) is arranged close to the second support ring (16).

2. The epoxy polyester powder coating processing equipment of claim 1, wherein: one side that lies in screening inner tube (9) on processing platform (1) is provided with air transmission pump (10), air tank (11) are installed to the air transmission end of air transmission pump (10), be provided with a plurality of gas-supply pipes (12) on air tank (11), it is a plurality of the output port of gas-supply pipe (12) all sets up on the lateral wall of screening cylinder (3).

3. The epoxy polyester powder coating processing equipment of claim 1, wherein: the internally mounted of screening cylinder (3) has first support ring (13), first support ring (13) are close to pan feeding mouth (4) installation, have seted up a plurality of through-holes (14) on first support ring (13), and are a plurality of through-hole (14) all correspond gas-supply pipe (12) installation, install transmission pipe (15) between the inner wall of screening cylinder (3) and first support ring (13), transmission pipe (15) one end and gas-supply pipe (12) fixed connection, the other end and through-hole (14) fixed connection, second support ring (16) are installed to the inside other end of screening cylinder (3), and the inside of screening cylinder (3) is close to second support ring (16) and installs filter ring board (17).

4. The epoxy polyester powder coating processing equipment of claim 3, wherein: first support ring (13) and second support ring (16) form bearing structure, bearing structure's interior anchor ring is all rolled to be installed and is fallen and hinder ball (18), bearing structure's interior anchor ring parcel falls and hinders ball (18) and be provided with holder (19), holder (19) set up to the arc, one side lateral wall that second support ring (16) deviates from filter ring board (17) is provided with anticreep ring (20).

5. The epoxy polyester powder coating processing equipment of claim 1, wherein: the screening inner cylinder (9) comprises a cylinder body (21), a first bearing ring (22) and a second bearing ring (23) are respectively arranged on two sides of the outer annular surface of the cylinder body (21), sliding grooves (24) are formed in the annular side walls of the first bearing ring (22) and the second bearing ring (23), a positioning supporting plate (25) is arranged at one end of the cylinder body (21) close to the second bearing ring (23), and a limiting ring groove (26) is formed in the side wall, facing the second supporting ring (16), of the positioning supporting plate (25).

6. The epoxy polyester powder coating processing equipment of claim 5, wherein: the inner ring surface of the cylinder body (21) is spirally provided with a stirring sheet (2101);

first support ring (13), second support ring (16) and first bear ring (22), second and bear ring (23) and correspond the setting to first support ring (13), second support ring (16) are through falling hinder ball (18) and first bear ring (22), second and bear ring (23) sliding connection, anticreep ring (20) correspond the setting with spacing annular (26), and anticreep ring (20) set up the inside at spacing annular (26).

7. The epoxy polyester powder coating processing equipment of claim 1, wherein: an umbrella-shaped gear A (27) is arranged at the output end of the driving motor (7), a rotating rod (28) is rotatably arranged in the protective shell (6), the rotating rod (28) is vertically arranged in the protective shell (6), the two ends of the rotating rod (28) are both provided with umbrella-shaped gears B (29), the two umbrella-shaped gears B (29) are arranged in a way of deviating from each other, the bevel gear A (27) is meshed and connected with a bevel gear B (29) at the top end of the rotating rod (28), a supporting rotating rod (30) is arranged in the screening inner cylinder (9), an umbrella-shaped gear C (31) is arranged at the end part of the supporting rotating rod (30), the bevel gear C (31) is meshed and connected with a bevel gear B (29) at the bottom end of the rotating rod (28), the bevel gear A (27) is in transmission connection with the bevel gear C (31) through a bevel gear B (29).

8. The epoxy polyester powder coating processing equipment of claim 1, wherein: the inner chamber bottom of screening cylinder (3) is provided with right angle triangle platform (301), the right angle of right angle triangle platform (301) is towards the setting of carefully filtering export (33), right angle triangle platform (301) are close to carefully and are filtered export (33) and are provided with upward sloping platform (302), the domatic setting of upward sloping platform (302) is the cambered surface, install on upward sloping platform (302) one side of filtering crown plate (17), and the bottom of screening cylinder (3) is and lie in upward sloping platform (302) and be provided with vibrating motor.

9. The method of using an epoxy polyester powder coating processing equipment as claimed in claim 1, wherein:

s1, starting the air pump (10), blowing air into the screening inner cylinder (9), arranging a plurality of air passages, conveying air in different directions, making the internal powder flow into the filtering ring plate (9) along with the air flow, disturbing the air flow by continuously pressurizing, making the small particle powder pass through the filtering ring plate (17), and intercepting the larger particle powder at one side of the filtering ring plate (17) to achieve the effect of guiding the air flow to filter the powder;

s2, conveying materials into the barrel body (21) through the feeding port (4), driving a supporting rotating rod (30) to rotate by a driving motor (7), driving the barrel body (21) to rotate by the supporting rotating rod (30), generating centrifugal force when the barrel body (21) rotates, scattering the powder materials, centrifuging part of the powder materials to separate out the barrel body (21) through sieve holes, grinding the larger material blocks into powder through collision in the barrel body, improving the screening effect, forming primary coarse screening, blowing the separated powder materials through an air passage, having the secondary filtering effect, matching the centrifugal barrel body (21) screening with air flow screening to achieve the multi-screening function, distinguishing the powder materials with different sizes in the barrel body, circularly putting the coarse powder materials into the barrel body (21), simultaneously circulating air flow to avoid the powder materials from being sticky, and improving the screening quality;

s3, when blowing, arranging a right-angle triangular table (301) at the bottom of the inner cavity of the screening roller (3), filtering the small-particle powder out of the filtering ring plate (17) to ensure that the small-particle powder is not easy to flow backwards, closing the coarse filtering outlet (32) at the moment, and keeping the larger agglomerated powder in the screening roller (3);

and S4, when the filtration is finished, opening a window of the coarse filtration outlet (32), discharging the large agglomerated powder from the inclined surface of the right-angle triangular platform (301) by self-weight rolling, and collecting and putting the powder into a barrel.

10. An epoxy polyester powder coating processing technology, which uses the epoxy polyester powder coating processing equipment as claimed in any one of claims 1 to 8.