CN113385410A

CN113385410A - Coating production raw materials fine screen device

Info

Publication number: CN113385410A
Application number: CN202110718903.3A
Authority: CN
Inventors: 刘伟; 杜彩霞
Original assignee: Chongqing Hanyaxuan Technology Co ltd
Current assignee: Chongqing Hanyaxuan Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-09-14

Abstract

The invention belongs to the field of paint production, and particularly relates to a paint production raw material fine screening device which comprises a base, wherein a left support frame is fixedly connected to the left side of the upper end of the base, a left guide rod is connected to the inside of the left support frame in a sliding manner, a screen box is fixedly connected to the right end of the left guide rod, a first spring is sleeved on the outer side of the left guide rod, a through groove is formed in the bottom of the screen box, a bottom ring is arranged at the lower end of the screen box, a right support frame is fixedly connected to the right side of the upper end of the base, and a right guide rod is connected to the inside of the right support frame in a sliding manner. The invention can further crush the raw materials by designing the crushing component consisting of the connecting sleeve, the vertical rod, the fan blades, the sleeve, the crushing transverse cutter and the crushing longitudinal cutter which are driven by the second motor in the box body, and designs the sieve hopper, the connecting rod and the filter plate to filter the raw materials, and can crush and sieve the large-particle raw materials on the sieve hopper until the granularity of the raw materials meets the requirement, and the large-particle raw materials are not crushed and reused after being sieved.

Description

Coating production raw materials fine screen device

Technical Field

The invention relates to the technical field of paint production, in particular to a fine screening device for a paint production raw material.

Background

The coating is a liquid or solid material which can form a film to protect, decorate or perform other special functions (insulation, rust prevention, mildew prevention, heat resistance and the like) when being coated on the surface of an object under certain conditions. Since the early coatings mostly used vegetable oils as the main raw material, they were also called paints. In the production process of the coating, the working procedures of preparing a base material, sieving the base material, mixing materials, blending, preparing the coating, filtering the coating and the like are required.

When the base material was sieved, need carry out the fine screen to the raw materials, obtain the raw materials that accords with the granularity requirement, but only the screening when the screening, do not continue to smash the raw materials, the large granule raw materials that lead to being sieved out after the screening still need smash the filtration once more, and the filter block also blocks up easily when the screening, the raw materials also has the dust when the screening, current equipment lacks dustproof measure, also be difficult to last the unloading when the screening, generally need the fine screen after can the unloading, need hold in the container during the unloading, then retransfer, work efficiency is low.

Disclosure of Invention

The invention aims to provide a coating production raw material fine screening device, which solves the problem that the raw material is not crushed again during fine screening of the raw material and also solves the problems of easy blockage, lack of dustproof measures, difficulty in continuous feeding and inconvenience in transfer during screening.

In order to achieve the purpose, the invention provides the following technical scheme: a coating production raw material fine screening device comprises a base, wherein a left support frame is fixedly connected to the left side of the upper end of the base, a left guide rod is connected to the inside of the left support frame in a sliding mode, a screen box is fixedly connected to the right end of the left guide rod, a first spring is sleeved on the outer side of the left guide rod, a through groove is formed in the bottom of the screen box, a bottom ring is arranged at the lower end of the screen box, a right support frame is fixedly connected to the right side of the upper end of the base, a right guide rod is connected to the inside of the right support frame in a sliding mode, a second spring is sleeved on the outer side of the right guide rod, a first motor is fixedly installed at the right end of the left support frame, a cam is fixedly installed on the outer side of a first motor shaft of the first motor, and the cam is in contact with the screen box;

the upper end of sieve case has the case lid through threaded connection, the upper end fixed mounting of case lid has the second motor, the output of second motor is connected with the pole setting, and the second motor acts on the pole setting for: the vertical rod can rotate relative to the screen box, fan blades are connected to the outer side of the vertical rod, a sleeve is mounted on the outer side of the vertical rod through a bolt, a crushing transverse knife is fixedly connected to the outer side of the sleeve, a crushing longitudinal knife is fixedly connected to the lower end of the crushing transverse knife, a screen bucket is slidably connected to the screen box, a connecting rod is fixedly connected to the lower end of the screen bucket, and a screen plate is fixedly connected to the lower end of the connecting rod;

the outer side of foundation ring has cup jointed the ripple cover, the inside slip of ripple cover has cup jointed the case that gathers materials, the lower extreme fixedly connected with supporting shoe of case that gathers materials, the lower extreme fixedly connected with wheel carrier of supporting shoe, the inside of wheel carrier articulates there is the wheel, sliding connection has the bayonet lock in the right branch strut, the outside of bayonet lock has the support ring through threaded connection, the outside of bayonet lock has cup jointed the third spring.

Preferably, a guide groove is formed in the base, the wheel carrier is connected in the guide groove in a sliding mode, the number of the guide grooves is two, and the two guide grooves are symmetrically distributed on the base.

Preferably, the left end of the first spring is in contact with the left support frame, and the right end of the first spring is in contact with the screen box.

Preferably, the left end of the second spring is in contact with the screen box, and the right end of the second spring is in contact with the right support frame.

Preferably, the upper end of the box cover is fixedly connected with a feeding hopper, and the upper end of the feeding hopper is connected with a dustproof cover through threads.

Preferably, the sieve hopper and the sieve plate are both of porous hollow structures, and both the sieve hopper and the sieve plate are made of stainless steel materials.

Preferably, the clamp is fixedly mounted on the outer side of the corrugated sleeve, and the corrugated sleeve is made of a transparent silica gel material.

Preferably, the right side surface of the material collecting box is provided with a clamping groove, and a clamping pin is clamped in the clamping groove.

Preferably, the left end of the third spring is in contact with the support ring, and the right end of the third spring is in contact with the right support frame.

Preferably, the lower extreme fixedly connected with buckle of sieve, the buckle is with the bottom joint of sieve case.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention can further crush the raw materials by designing the crushing component consisting of the connecting sleeve, the vertical rod, the fan blades, the sleeve, the crushing transverse cutter and the crushing longitudinal cutter which are driven by the second motor in the box body, and designs the sieve hopper, the connecting rod and the filter plate to filter the raw materials, and can crush and sieve the large-particle raw materials on the sieve hopper until the granularity of the raw materials meets the requirement, and the large-particle raw materials are not crushed and reused after being sieved.

2. According to the invention, the left support frame and the right support frame are designed, the left guide rod and the right guide rod are respectively installed and connected with the screen box, the first spring and the second spring are respectively installed on the left guide rod and the right guide rod, and the installed first motor drives the cam to rotate, so that the screen box vibrates transversely, the screen hopper vibrates, the screen hopper is not easy to block, and the screening efficiency is high.

3. According to the invention, the dust cover is arranged on the feeding hopper, the corrugated sleeve is arranged at the bottom of the screen box, and the corrugated sleeve is matched with the material collecting box, so that a relatively closed space can be formed, no dust flies in the material screening process, and the dust prevention effect is good.

4. According to the invention, through grooves are designed at the bottom of the screen box, raw materials are crushed, screened by the screen bucket and then enter the screen plate for screening, and then fall into the aggregate box through the through grooves, so that continuous blanking can be realized during screening, and the working efficiency is high.

5. According to the invention, the material collecting box is designed at the bottom of the corrugated sleeve, the wheels are designed at the bottom of the material collecting box, and the material collecting box is positioned through the designed clamping pins, so that the material collecting box can conveniently reach an appointed position for collecting materials, after the material collection is finished, the clamping pins can be pulled to release the positioning of the material collecting box, and then the material collecting box is pushed away, so that the material collecting box is convenient to transfer.

Drawings

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

FIG. 2 is an enlarged view of the portion A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the portion B of FIG. 1 according to the present invention;

FIG. 4 is a top view of the sieve box of FIG. 1 of the present invention;

FIG. 5 is a right side view of the collection box of FIG. 1 of the present invention;

FIG. 6 is a top view of the sieve hopper of FIG. 1 in accordance with the present invention;

FIG. 7 is a top view of the base of FIG. 1 in accordance with the present invention;

FIG. 8 is a schematic diagram of the structure of an embodiment of the present invention when raw materials are added;

FIG. 9 is a schematic diagram of the structure of an embodiment of the present invention in crushing raw materials;

FIG. 10 is a schematic view of the structure of one embodiment of the present invention for cleaning the crushing horizontal blade and the crushing vertical blade;

FIG. 11 is a schematic structural diagram of a first embodiment of the first cylinder according to the present invention.

In the figure: 1. a base; 2. a guide groove; 3. a left support frame; 4. a left guide bar; 5. a first spring; 6. a screen box; 61. a through groove; 62. a bottom ring; 7. a right support frame; 8. a right guide bar; 9. a second spring; 10. a first motor; 11. a first motor shaft; 12. a cam; 13. a box cover; 14. a hopper; 15. a dust cover; 16. a second motor; 17. a second motor shaft; 18. connecting sleeves; 19. erecting a rod; 20. a fan blade; 21. a sleeve; 22. crushing the horizontal cutter; 23. crushing longitudinal cutters; 24. a screen bucket; 25. a connecting rod; 26. a sieve plate; 27. buckling; 28. a corrugated sleeve; 29. clamping a hoop; 30. a material collecting box; 31. a support block; 32. a wheel carrier; 33. a wheel; 34. a card slot; 35. a bayonet lock; 36. a support ring; 37. the device comprises a third spring, 38, a mounting hole, 39, a first bearing, 40, a rotating cylinder, 41, a second bearing, 42, a vertical rod driven gear, 43, a rotating cylinder driven gear, 44, a first air cylinder, 45, a motor connecting piece, 46, a driving gear, 47, a second air cylinder, 48, a locking piece, 49, a vertical rod cavity, 50, a cross cutter cavity, 51, an air blowing hole, 52, an air inlet pipe, 53, a guide cylinder, 54, a limiting frame, 55 and a third bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-7, a coating production raw material fine screening device comprises a base 1, a left support frame 3 is fixedly connected to the left side of the upper end of the base 1, a left guide rod 4 is slidably connected to the inside of the left support frame 3, a screen box 6 is fixedly connected to the right end of the left guide rod 4, a first spring 5 is sleeved on the outer side of the left guide rod 4, a through groove 61 is formed in the bottom of the screen box 6, a bottom ring 62 is arranged at the lower end of the screen box 6, a right support frame 7 is fixedly connected to the right side of the upper end of the base 1, a right guide rod 8 is slidably connected to the inside of the right support frame 7, a second spring 9 is sleeved on the outer side of the right guide rod 8, a first motor 10 is fixedly installed at the right end of the left support frame 3, a cam 12 is fixedly installed on the outer side of a first motor shaft 11 of the first motor 10, and the cam 12 is in contact with the screen box 6;

the upper end of the screen box 6 is connected with a box cover 13 through threads, the upper end of the box cover 13 is fixedly provided with a second motor 16, the outer side of a second motor shaft 17 of the second motor 16 is provided with a connecting sleeve 18 through a bolt, the lower end of the connecting sleeve 18 is fixedly connected with an upright rod 19, the outer side of the upright rod 19 is connected with fan blades 20, the outer side of the upright rod 19 is provided with a sleeve 21 through a bolt, the outer side of the sleeve 21 is fixedly connected with a crushing transverse knife 22, the lower end of the crushing transverse knife 22 is fixedly connected with a crushing longitudinal knife 23, a screen bucket 24 is slidably connected in the screen box 6, the lower end of the screen bucket 24 is fixedly connected with a connecting rod 25, and the lower end of the connecting rod 25 is fixedly connected with a screen plate 26;

the outer side of foundation ring 62 is cup jointed with ripple cover 28, and the inside slip of ripple cover 28 is cup jointed with the case 30 that gathers materials, and the lower extreme fixedly connected with supporting shoe 31 of case 30 that gathers materials, the lower extreme fixedly connected with wheel carrier 32 of supporting shoe 31, and the inside of wheel carrier 32 articulates there is wheel 33, and sliding connection has bayonet lock 35 in the right branch strut 7, and the outside of bayonet lock 35 has support ring 36 through threaded connection, and the outside of bayonet lock 35 is cup jointed with third spring 37.

Referring to fig. 1 and 7, a guide groove 2 is formed in the base 1, a wheel carrier 32 is slidably connected in the guide groove 2, the number of the guide grooves 2 is two, and the two guide grooves 2 are symmetrically distributed on the base 1. The wheels 33 are conveniently moved to a designated position by the design of the guide grooves 2.

Referring to fig. 1, the left end of the first spring 5 contacts the left support frame 3, and the right end of the first spring 5 contacts the screen box 6. The first spring 5 has elasticity and has a restoring effect after being compressed.

Referring to fig. 1, the left end of the second spring 9 contacts the screen box 6, and the right end of the second spring 9 contacts the right support frame 7. The second spring 9 has elasticity and has a restoring effect after being compressed.

Referring to fig. 1, a hopper 14 is fixedly connected to an upper end of the box cover 13, and a dust cap 15 is connected to an upper end of the hopper 14 through a screw thread. The design of the dust cap 15 prevents dust from escaping from the hopper 14.

Referring to fig. 1, the hopper 24 and the screen plate 26 are both porous and hollow structures, and the hopper 24 and the screen plate 26 are both made of stainless steel material. Through the design of porous hollow out construction, can sieve the raw materials.

Referring to fig. 2, a clamp 29 is fixedly mounted on the outer side of the corrugated sleeve 28, and the corrugated sleeve 28 is made of transparent silicone material. The transparent silicone material is soft, and the storage condition of the raw materials inside the material collecting box 30 can be observed through the transparent silicone material.

Referring to fig. 3, a clamping groove 34 is formed on the right side surface of the material collecting box 30, and a clamping pin 35 is clamped in the clamping groove 34. The positioning of the collection box 30 is performed by the cooperation of the locking groove 34 and the locking pin 35.

Referring to fig. 3, the left end of the third spring 37 contacts the support ring 36, and the right end of the third spring 37 contacts the right support frame 7. The third spring 37 is compressed and causes the detent 35 to snap into the detent 34.

Referring to fig. 2, a buckle 27 is fixedly connected to the lower end of the screen plate 26, and the buckle 27 is clamped with the bottom of the screen box 6. The screen deck 26 may be mounted within the screen box 6 by the design of the snap 27.

The specific implementation process of the invention is as follows: as shown in fig. 1 to 6, when the raw material needs to be sieved, the dust cover 15 is opened first, the raw material is added into the sieving box 6, then the dust cover 15 is reset, the second motor 16 is started, the second motor shaft 17 of the second motor 16 drives the connecting sleeve 18 to rotate, the connecting sleeve 18 drives the vertical rod 19 to rotate, the vertical rod 19 drives the fan blade 20 to rotate, the fan blade 20 can blow the raw material, so that the raw material is better dispersed, the vertical rod 19 drives the sleeve 21 to rotate, the sleeve 21 drives the crushing transverse knife 22 and the crushing longitudinal knife 23 to rotate, the crushing transverse knife 22 and the crushing longitudinal knife 23 continuously crush the raw material, the crushed raw material falls down through the sieving hopper 24, and the crushed raw material falls into the collecting box 30 after being filtered by the sieving plate 26, so that continuous blanking can be realized, and the working efficiency is high;

the working principle is that when the fan blades 20 are fixedly connected to the upright rod 19, the upright rod 19 rotates to drive the fan blades 20 to rotate. In order to improve the structural optimization and reduce the power consumption, the rotation of the fan blades 20 and the rotation of the upright rod 19 can be designed independently, as shown in fig. 8 to 11, a mounting hole 38 is formed in the box cover 13, the mounting hole 38 is rotatably connected with a rotating cylinder 40 through a first bearing 39, and the inner wall of the rotating cylinder 40 is rotatably connected with the upright rod 19 through a second bearing 41; the outer wall surface of the upright rod 19 is sleeved with an upright rod driven gear 42 which is arranged in a linkage manner, the outer wall surface of the rotating cylinder 40 is sleeved with a rotating cylinder driven gear 43 which is arranged in a linkage manner, and the fan blades 20 are connected to the outer wall surface of the rotating cylinder 40; the box cover 13 is further provided with a first air cylinder 44, the output end of the first air cylinder 44 is connected with the second motor 16 through a motor connecting piece 45, a second motor shaft 17 of the second motor 16 is sleeved with a driving gear 46, the first air cylinder 44 acts on the second motor 16 to enable the second motor 16 to move up and down, and the driving gear 46 can be meshed with the vertical rod driven gear 42 or/and the rotating cylinder driven gear 43.

Preferably, in order to avoid the mutual influence between the upright 19 and the rotary drum 40, a second cylinder 47 is further mounted on the box cover 13, a locking member 48 is connected to the output end of the second cylinder 47, and the second cylinder 47 acts on the locking member 48, so that: the locking member 48 can lock the vertical rod driven gear 42 or the rotary cylinder driven gear 43.

In this embodiment, the locking member 48 can be locked by being brought into engagement with the vertical rod driven gear 42 or the rotary cylinder driven gear 43.

In use, when the raw material is added, the first cylinder 44 is actuated to adjust the height position of the driving gear 46 so that the driving gear 46 can be simultaneously engaged with the vertical rod driven gear 42 and the rotary cylinder driven gear 43, and at the same time, the second cylinder 47 is actuated to adjust the height position of the locking member 48 so that the locking member 48 is staggered from both the vertical rod driven gear 42 and the rotary cylinder driven gear 43. At this time, the second motor 16 is activated, so that the upright 19 and the rotary drum 40 are rotated to complete the raw material dispersing operation.

When only the crushing work is required, the height position of the drive gear 46 is adjusted by the first cylinder 44 so that: the driving gear 46 is engaged with the vertical rod driven gear 42, and the driving gear 46 is misaligned with the rotary barrel driven gear 43, and the height position of the locking piece 48 is adjusted by the second air cylinder 47 so that: the locking piece 48 locks the rotating drum driven gear 43, and the locking piece 48 is dislocated with the vertical rod driven gear 42, so that when the second motor 16 is started, only the vertical rod 19 can be rotated, and the crushing transverse knife 22 and the crushing longitudinal knife 23 are driven to continuously crush the raw materials. At this time, the fan blades 20 are kept in a static state, and the crushed material can be prevented from splashing everywhere.

After the crushing, the crushing horizontal blades 22 and the crushing vertical blades 23 can be cleaned by rotating the fan blades 20, and specifically, the height position of the driving gear 46 is adjusted by the first cylinder 44 so that: the driving gear 46 is engaged with the rotary drum driven gear 43, and the driving gear 46 is misaligned with the vertical rod driven gear 42, and the height position of the locking piece 48 is adjusted by the second air cylinder 47 so that: the locking piece 48 locks the vertical rod driven gear 42, and the locking piece 48 is dislocated with the rotary cylinder driven gear 43, so that when the second motor 16 is started, only the rotary cylinder 40 can be rotated, and then the fan blades 20 are driven to rotate to generate air flow, and the crushed slag on the residual crushing transverse knife 22 and the crushing longitudinal knife 23 is cleaned.

In order to improve the stability of the up-and-down movement of the second motor 16, a guide cylinder 53 for guiding the second motor shaft 17 and a limiting frame 54 for limiting the second motor 16 can be further arranged on the box cover 13.

In order to improve the cleaning quality of the residual crushing transverse cutters 22 and the crushing longitudinal cutters 23, the vertical rods 19 can be provided with vertical rod cavities 49, the crushing transverse cutters 22 are provided with transverse cutter cavities 50 communicated with the vertical rod cavities 49, the transverse cutter cavities 50 are also provided with a plurality of air blowing holes 51 capable of facing the crushing longitudinal cutters 23, and the top openings of the vertical rods 19 can be rotatably communicated with air inlet pipes 52 through third bearings 55.

When the device is used, the air inlet pipe 52 is communicated with the gas generator, the gas generator is started, high-pressure gas can be injected into the vertical rod cavity 49, and the high-pressure gas is sprayed out from the gas blowing holes 51 through the transverse knife cavity 50 so as to clean residues on the crushing longitudinal knife 23.

The air blowing holes 51 can be obliquely arranged for better cleaning the crushing longitudinal knives 23.

When raw materials are screened, the first motor 10 is started, the first motor shaft 11 of the first motor 10 drives the cam 12 to rotate, and when the cam 12 is in contact with the screen box 6, the screen box 6 can vibrate, so that the screen bucket 24 and the screen plate 26 in the screen box 6 vibrate, the raw materials are not easy to block the screen bucket 24 and the screen plate 26, and the filtering efficiency is higher;

the dust cover 15 is arranged on the charging hopper 14, the corrugated sleeve 28 is arranged at the bottom of the screen box 6, and the corrugated sleeve 28 is matched with the material collecting box 30 to form a relatively closed space, so that no dust flies in the screening process and the dust prevention effect is good; through the bottom design case 30 that gathers materials at bellows 28, the bottom design wheel 33 of case 30 that gathers materials, and fix a position case 30 that gathers materials through bayonet 35 of design, conveniently makes case 30 that gathers materials reach the assigned position and gathers materials, after gathering materials and accomplishing, can stimulate bayonet 35 and remove the location to case 30 that gathers materials, then will gather materials case 30 and push away can, conveniently shift.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coating production raw materials fine screen device, includes base (1), its characterized in that: the upper end left side of the base (1) is fixedly connected with a left support frame (3), the inner portion of the left support frame (3) is connected with a left guide rod (4) in a sliding mode, the right end of the left guide rod (4) is fixedly connected with a screen box (6), the outer side of the left guide rod (4) is sleeved with a first spring (5), the bottom of the screen box (6) is provided with a through groove (61), the lower end of the screen box (6) is provided with a bottom ring (62), the upper end right side of the base (1) is fixedly connected with a right support frame (7), the inner portion of the right support frame (7) is connected with a right guide rod (8) in a sliding mode, the outer side of the right guide rod (8) is sleeved with a second spring (9), the right end of the left support frame (3) is fixedly installed with a first motor (10), the outer side of a first motor shaft (11) of the first motor (10) is fixedly installed with a cam (12), the cam (12) is in contact with the screen box (6);

the upper end of sieve case (6) has case lid (13) through threaded connection, the upper end fixed mounting of case lid (13) has second motor (16), the output of second motor (16) is connected with pole setting (19), and second motor (16) act on pole setting (19) for: the vertical rod (19) can rotate relative to the screen box (6), the outer side of the vertical rod (19) is connected with fan blades (20), the outer side of the vertical rod (19) is provided with a sleeve (21) through a bolt, the outer side of the sleeve (21) is fixedly connected with a crushing transverse knife (22), the lower end of the crushing transverse knife (22) is fixedly connected with a crushing longitudinal knife (23), the screen box (6) is internally connected with a screen bucket (24) in a sliding manner, the lower end of the screen bucket (24) is fixedly connected with a connecting rod (25), and the lower end of the connecting rod (25) is fixedly connected with a screen plate (26);

ripple cover (28) has been cup jointed in the outside of foundation ring (62), the inside slip of ripple cover (28) has been cup jointed and has been gathered workbin (30), the lower extreme fixedly connected with supporting shoe (31) of gathering workbin (30), the lower extreme fixedly connected with wheel carrier (32) of supporting shoe (31), the inside of wheel carrier (32) articulates there is wheel (33), sliding connection has bayonet lock (35) in right branch frame (7), there is support ring (36) in the outside of bayonet lock (35) through threaded connection, third spring (37) has been cup jointed in the outside of bayonet lock (35).

2. The coating production raw material fine screening device of claim 1, which is characterized in that: guide way (2) have been seted up in base (1), sliding connection has wheel carrier (32) in guide way (2), the quantity of guide way (2) is two, two guide way (2) are the symmetric distribution on base (1).

3. The coating production raw material fine screening device of claim 1, which is characterized in that: the left end of the first spring (5) is in contact with the left support frame (3), and the right end of the first spring (5) is in contact with the screen box (6).

4. The coating production raw material fine screening device of claim 1, which is characterized in that: the left end of the second spring (9) is in contact with the screen box (6), and the right end of the second spring (9) is in contact with the right supporting frame (7).

5. The coating production raw material fine screening device of claim 1, which is characterized in that: the upper end fixedly connected with loading hopper (14) of case lid (13), there is shield (15) upper end through threaded connection of loading hopper (14).

6. The coating production raw material fine screening device of claim 1, which is characterized in that: the sieve hopper (24) and the sieve plate (26) are both of porous hollow structures, and the sieve hopper (24) and the sieve plate (26) are both made of stainless steel materials.

7. The coating production raw material fine screening device of claim 1, which is characterized in that: the outside fixed mounting of ripple cover (28) has clamp (29), ripple cover (28) are made by transparent silica gel material.

8. The coating production raw material fine screening device of claim 1, which is characterized in that: the right side surface of the material collecting box (30) is provided with a clamping groove (34), and a clamping pin (35) is clamped in the clamping groove (34).

9. The coating production raw material fine screening device of claim 1, which is characterized in that: the left end of the third spring (37) is in contact with the support ring (36), and the right end of the third spring (37) is in contact with the right support frame (7).

10. The coating production raw material fine screening device of claim 1, which is characterized in that: the lower extreme fixedly connected with buckle (27) of sieve (26), buckle (27) and the bottom joint of sieve case (6).