A vibrating screening device for powder coatings

Abstract

The present invention relates to the field of coating screening, specifically a powder coating vibrating screening device, comprising a vibrating base and a first screen frame and a second screen frame sequentially installed on the vibrating base from bottom to top, the vibrating base and the first screen frame, and the first screen frame and the second screen frame are detachably connected via a clamp ring, the interior of the second screen frame is fixedly connected with a screen surface, and the second screen frame is installed with a processing mechanism and an anti-blocking mechanism respectively located on the upper and lower sides of the screen surface. The present invention uses the linkage cooperation of the processing mechanism and the driving motor to drive the agglomeration crushing component, the shoveling component and the pushing component to make a circular motion around the edge of the screen surface when screening the powder coating, and uses the agglomeration crushing component to extrude and crush the agglomerated powder coating, and then the shoveling component turns over and shovels up the crushed powder coating, and then cooperates with the vibration of the screen surface to efficiently break up and disperse the agglomerated powder coating, which is beneficial to improving the screening effect of the powder coating.

Description

Technical Field

[0001] The invention relates to the technical field of coating screening, in particular to a powder coating vibration screening device. Background Art

[0002] Powder coating is a solid coating that does not use solvents and is usually composed of resins, pigments, fillers and other additives. This coating is evenly coated on the surface of the substrate by methods such as electrostatic spraying or fluidized bed coating, and then cured at high temperature to form a solid coating. The screening of powder coating is an important step to ensure that the powder coating particles are uniform and meet the requirements of spraying. Screening not only affects the spraying effect of the coating, but also directly affects the quality of the coating and the performance of the final product.

[0003] Powder coatings are generally screened using a rotary vibrating screen. The powder coatings fall onto the screen surface from the feed port above the screening machine. Under the vibration generated by the centrifugal motor, the coatings perform a spiral diffusion motion on the screen surface, and the coatings with smaller particle sizes fall freely through the screen holes. However, the above screening method still has the following shortcomings: 1. When screening the powder coatings, some of the powder coatings will clump, and the agglomerated powder coatings cannot be effectively screened by the screen surface, affecting the screening effect of the powder coatings; 2. During the process of spiral diffusion of the powder coatings on the screen surface, the powder coatings will quickly gather at the edge of the screen surface, and this part of the gathered powder is difficult to be effectively screened, which will lead to a decrease in the screening output, and the screening efficiency needs to be improved. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a powder coating vibrating screening device, including a vibrating base and a first screen frame and a second screen frame installed on the vibrating base from bottom to top, the vibrating base and the first screen frame, and the first screen frame and the second screen frame are detachably connected by a clamp ring, the interior of the second screen frame is fixedly connected to a screen surface, the second screen frame is equipped with a processing mechanism and an anti-blocking mechanism respectively located on the upper and lower sides of the screen surface, and a driving motor for driving the processing mechanism and the anti-blocking mechanism is installed on the outer ring wall of the second screen frame.

[0005] The processing mechanism includes a lump breaking component arranged above the screen surface, a shoveling component for shoveling powder coating is installed on the front side of the lump breaking component, a pushing component for pushing the powder coating to the center of the screen surface is installed on the front side of the shoveling component, and a transmission component for driving the lump breaking component, the shoveling component and the pushing component to move circumferentially is installed on the inner wall of the second screen frame.

[0006] The anti-blocking mechanism includes a transmission component 2 installed on the inner wall of the second screen frame, a cleaning brush is rotatably installed on the transmission component 2, and the cleaning brush is located directly below the agglomeration crushing component. A rotating component that drives the cleaning brush to rotate is also installed on the inner wall of the second screen frame.

[0007] In one possible implementation, the agglomeration crushing assembly includes a C-shaped frame located above the screen surface, a feed roller and a pressure roller are rotatably connected between two vertical sections of the C-shaped frame, the feed roller is located above and behind the pressure roller, the feed roller and the pressure roller are connected by a belt drive, the left end of the feed roller is coaxially fixedly connected to a first gear located on the left side of the C-shaped frame, and a fixed gear ring 1 located below the first gear is fixedly connected to the inner wall of the second screen frame, and the fixed gear ring 1 is meshed with the first gear.

[0008] In one possible implementation, the shoveling assembly includes a horizontal plate fixedly connected to the front side of the U-shaped frame, a plurality of connecting rods are installed at equal intervals on the left and right sides of the bottom of the horizontal plate, an inclined shovel plate is fixedly connected to the bottom of the connecting rods, the rear end of the shovel plate is inclined to the left, and the bottom of the shovel plate is in contact with the top of the screen surface.

[0009] In one possible implementation, the pushing assembly includes a mounting frame fixedly connected to the front side of the cross plate, the left and right ends of the mounting frame are rotatably connected to an axle rod, a transmission wheel is coaxially fixedly connected to the axle rod, a transmission belt is transmission-connected between the outsides of the two transmission wheels, a plurality of L-shaped push plates are evenly installed on the outer circumference of the transmission belt, the horizontal section of the L-shaped push plate is perpendicular to the pressure roller, a support block is fixedly connected to the rear side of the mounting frame, a first transmission rod is rotatably installed on the support block, the right end of the first transmission rod is transmission-connected to the axle rod at the right end via a bevel gear set, and the left end of the first transmission rod is transmission-connected to the feed roller via a pulley assembly.

[0010] In one possible implementation, the transmission component includes a first annular guide rail fixedly connected to the inner wall of the second screen frame, a first rotating ring is rotatably installed on the inner side of the first annular guide rail, a connecting piece is fixedly connected to the inner ring wall of the first rotating ring, the bottom of the connecting piece is fixedly connected to the top of the cross plate, the bottom of the first rotating ring is fixedly connected to the first gear ring, the output shaft of the drive motor rotates through the inner side of the second screen frame and is fixedly connected to the first drive gear, and the first drive gear is meshed with the first gear ring.

[0011] In one possible implementation, the second transmission component includes a second annular guide rail fixedly connected to the inner wall of the second screen frame, a second rotating ring is rotatably installed on the inner side of the second annular guide rail, a second gear ring is fixedly connected to the bottom of the second rotating ring, a second transmission rod located below the second gear ring is rotatably installed on the inner wall of the second screen frame, a second driving gear is fixedly installed on one end of the second transmission rod close to the center of the second screen frame, the second driving gear is meshed with the second gear ring, the end of the second transmission rod away from the center of the second screen frame rotates through the outside of the second screen frame and is then connected to the output shaft of the drive motor through the pulley component 2, and the top of the second rotating ring is rotatably connected to the cleaning brush through a fixed block.

[0012] In one possible implementation, the rotating assembly includes a second fixed gear ring fixedly mounted on the inner wall of the second screen frame and located between the screen surface and the second annular guide rail, and the left end of the cleaning brush is coaxially fixedly connected to a second gear, and the second gear is meshed with the second fixed gear ring.

[0013] In one possible implementation, it also includes a dust suction mechanism for dusting the first screen frame and the second screen frame, the first screen frame and the second screen frame are fixedly connected to the outer ring wall with a discharge neck, the discharge neck is provided with a discharge port at the bottom away from one end of the first screen frame, the dust suction mechanism includes an upper dust suction component installed on the top of the second screen frame, a lower dust suction component is installed on the top of the discharge neck, the upper dust suction component and the lower dust suction component are commonly connected to a conveying component, and the bottom of the conveying component is connected to a dust collector.

[0014] In one possible implementation, the upper dust suction assembly includes a dust cover that is detachably mounted on the second screen frame via a clamping ring, a feed port is provided at the top of the dust cover, a trumpet-shaped first filter is fixedly mounted inside the dust cover, a small mouth end of the first filter is connected to the feed port, a cavity is reserved between the dust cover and the first filter, and a first dust suction port is provided on the right side of the dust cover.

[0015] In one possible implementation, the lower dust suction component includes a second dust suction port opened at the top of the discharge neck, a second filter is fixedly installed inside the second dust suction port, and the conveying component includes a trumpet tube fixedly connected to the first dust suction port and the second dust suction port, and the trumpet tube is connected to the vacuum cleaner through a fixedly connected dust suction pipe.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention, through the linkage cooperation of the processing mechanism and the driving motor, drives the agglomeration crushing component, the shoveling component and the pushing component to make circular motion around the edge of the screen surface when screening the powder coating, and utilizes the agglomeration crushing component to extrude and crush the agglomerated powder coating, and then the shoveling component turns over the crushed powder coating, and then cooperates with the vibration of the screen surface to efficiently break up and disperse the agglomerated powder coating, which is beneficial to improve the screening effect of the powder coating, and then the pushing component continuously pushes the powder coating to the center of the screen surface to avoid the accumulation of powder coating on the edge of the screen surface, thereby improving the screening efficiency of the powder coating.

[0017] 2. The present invention realizes linkage coordination among the processing mechanism, the anti-blocking mechanism and the driving motor. When the driving motor drives the processing mechanism to rotate, the driving motor will synchronously drive the cleaning brush to make circular motion around the edge of the screen surface. When the cleaning brush makes circular motion, the rotating component can drive the cleaning brush to rotate by itself, and the cleaning brush is used to clean the screen surface from the bottom to prevent the caking of the screen surface edge when the caking powder coating is pressed by the caking crushing component, thereby improving the screening effect of the screen surface on the powder coating.

[0018] 3. The present invention absorbs the floating fine powder by setting a dust suction mechanism. When the powder coating is sieved, the upper dust suction component and the lower dust suction component absorb the floating fine powder during feeding and discharging respectively, and then transport the floating fine powder to the vacuum cleaner through the dust suction pipe, which can prevent the floating fine powder from affecting the operating environment and operators, and at the same time prevent the fine powder from falling into the sieved powder coating and affecting the uniformity of the powder coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure from a first angle of the present invention.

[0020] Figure 2 It is a partial cross-sectional view of the present invention.

[0021] Figure 3 It is a front cross-sectional view of the present invention.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the processing mechanism of the present invention.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the agglomeration crushing component of the present invention.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the shoveling assembly of the present invention.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the pusher assembly of the present invention.

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the anti-blocking mechanism of the present invention.

[0027] Fig. 9 It is a cross-sectional view of the lower dust collection assembly of the present invention.

[0028] In the figure: 1, vibration base; 2, first screen frame; 21, discharge neck; 3, second screen frame; 31, screen surface; 4, dust suction mechanism; 41, upper dust suction assembly; 411, dust cover; 412, first filter; 413, first dust suction port; 42, lower dust suction assembly; 421, second dust suction port; 422, second filter; 43, conveying assembly; 431, trumpet; 432, dust suction pipe; 44, vacuum cleaner; 5, processing mechanism; 51, agglomeration crushing assembly; 511, U-shaped frame; 512, feed roller; 513, pressure roller; 514, first gear; 515, fixed gear ring 1; 52, shovel assembly; 521, cross plate; 522, connecting rod; 523, shovel plate; 53, Pushing assembly; 531, mounting frame; 532, shaft; 533, transmission wheel; 534, transmission belt; 535, L-shaped push plate; 536, support block; 537, first transmission rod; 54, transmission assembly one; 541, first annular guide rail; 542, first rotating ring; 543, connecting piece; 544, first gear ring; 6, anti-blocking mechanism; 61, transmission assembly two; 611, second annular guide rail; 612, second rotating ring; 613, second gear ring; 62, cleaning brush; 63, rotating assembly; 631, fixed gear ring two; 632, second gear; 7, driving motor; 71, first driving gear; 72, second transmission rod; 73, second driving gear; 8, clamping ring. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] See also Figure 1 , Figure 2 and Figure 3A powder coating vibrating screening device comprises a vibrating base 1 and a first screen frame 2 and a second screen frame 3 sequentially mounted on the vibrating base 1 from bottom to top, the vibrating base 1 and the first screen frame 2, and the first screen frame 2 and the second screen frame 3 are detachably connected via a clamp ring 8, a screen surface 31 is fixedly connected inside the second screen frame 3, a processing mechanism 5 and an anti-blocking mechanism 6 are respectively mounted on the upper and lower sides of the screen surface 31 in the second screen frame 3, and a driving motor 7 for driving the processing mechanism 5 and the anti-blocking mechanism 6 is mounted on the outer ring wall of the second screen frame 3. The vibrating base 1 is an existing vibrating device.

[0031] See also Figure 3 and Figure 4 The processing mechanism 5 includes a lump crushing component 51 arranged above the screen surface 31, a shoveling component 52 for shoveling powder coating is installed on the front side of the lump crushing component 51, a pushing component 53 for pushing the powder coating to the center of the screen surface 31 is installed on the front side of the shoveling component 52, and a transmission component 54 for driving the lump crushing component 51, the shoveling component 52 and the pushing component 53 to move in a circle is installed on the inner wall of the second screen frame 3.

[0032] See also Figure 3 , Figure 4 and Figure 8 The anti-blocking mechanism 6 includes a transmission component 61 installed on the inner wall of the second screen frame 3, and a cleaning brush 62 is rotatably installed on the transmission component 61. The cleaning brush 62 is located directly below the agglomeration crushing component 51. A rotating component 63 for driving the cleaning brush 62 to rotate is also installed on the inner wall of the second screen frame 3.

[0033] See also Figure 4 and Figure 5 The agglomeration crushing assembly 51 includes a C-shaped frame 511 located above the screen surface 31, and a feed roller 512 and a pressure roller 513 are rotatably connected between the two vertical sections of the C-shaped frame 511. The feed roller 512 is located above and behind the pressure roller 513, and the feed roller 512 and the pressure roller 513 are connected by a belt drive. The left end of the feed roller 512 is coaxially fixedly connected to a first gear 514 located on the left side of the C-shaped frame 511, and a fixed gear ring 515 located below the first gear 514 is fixedly connected to the inner wall of the second screen frame 3, and the fixed gear ring 515 is meshed with the first gear 514.

[0034] When the agglomeration crushing assembly 51 rotates in a circle around the screen surface 31, the first gear 514 can rotate under the drive of the fixed gear ring 515, and then the first gear 514 drives the feed roller 512 to rotate, and the feed roller 512 drives the pressing roller 513 to rotate through the belt, and the feed roller 512 is used to transport the agglomerated powder coating to the pressing roller 513, and then the pressing roller 513 presses and crushes the powder coating, thereby improving the screening effect of the powder coating.

[0035] See also Figure 4 , Figure 5 and Figure 6 The shovel assembly 52 includes a horizontal plate 521 fixedly connected to the front side of the U-shaped frame 511, and a plurality of connecting rods 522 are installed at equal intervals on the left and right sides of the bottom of the horizontal plate 521. The bottom of the connecting rods 522 is fixedly connected to an inclined shovel plate 523, and the rear end of the shovel plate 523 is inclined to the left, and the bottom of the shovel plate 523 contacts the top of the screen surface 31.

[0036] When the shovel assembly 52 rotates in a circle around the screen surface 31, the shovel plate 523 can shovel up the powder coating flattened on the surface of the screen surface 31, and the vibration of the screen surface 31 itself is conducive to spreading the powder coating.

[0037] See also Figure 4 , Figure 6 and Figure 7 The pushing assembly 53 includes a mounting frame 531 fixedly connected to the front side of the cross plate 521, and the left and right ends of the mounting frame 531 are rotatably connected with a shaft 532, and a transmission wheel 533 is coaxially fixedly connected to the shaft 532, and a transmission belt 534 is transmission-connected between the outsides of the two transmission wheels 533, and a plurality of L-shaped push plates 535 are evenly installed on the outer circumference of the transmission belt 534, and the horizontal section of the L-shaped push plate 535 is perpendicular to the pressing roller 513, and a support block 536 is fixedly connected to the rear side of the mounting frame 531, and a first transmission rod 537 is rotatably installed on the support block 536, and the right end of the first transmission rod 537 is transmission-connected to the shaft 532 at the right end through a bevel gear set, and the left end of the first transmission rod 537 is transmission-connected to the feed roller 512 through a pulley assembly.

[0038] When the feed roller 512 rotates, the feed roller 512 drives the first transmission rod 537 to rotate through the belt, and then the first transmission rod 537 drives the shaft 532 and the transmission wheel 533 to rotate through the bevel gear set, and then the transmission wheel 533 drives the transmission belt 534 and the L-shaped push plate 535 to rotate, and the L-shaped push plate 535 at the bottom moves toward the center of the screen surface 31, and the powder coating is transported to the center of the screen surface 31 through the L-shaped push plate 535 at the bottom, so as to avoid the powder coating from accumulating on the edge of the screen surface 31, thereby improving the efficiency of powder coating screening.

[0039] See also Figure 3 and Figure 4The transmission component 54 includes a first annular guide rail 541 fixedly connected to the inner wall of the second screen frame 3, a first rotating ring 542 is rotatably installed on the inner side of the first annular guide rail 541, a connecting piece 543 is fixedly connected to the inner ring wall of the first rotating ring 542, the bottom of the connecting piece 543 is fixedly connected to the top of the cross plate 521, the bottom of the first rotating ring 542 is fixedly connected to the first gear ring 544, the output shaft of the driving motor 7 rotates through the inner side of the second screen frame 3 and is fixedly connected to the first driving gear 71, and the first driving gear 71 is meshed with the first gear ring 544.

[0040] The first driving gear 71 is driven to rotate by the driving motor 7, and then the first driving gear 71 drives the first gear ring 544 and the first rotating ring 542 to rotate, and then the first rotating ring 542 drives the cross plate 521 to rotate through the connecting piece 543, and then the U-shaped frame 511 and the mounting frame 531 are moved along the second screen frame 3, so that the agglomeration crushing component 51, the shoveling component 52 and the pushing component 53 can crush, shovel and push the powder coating respectively.

[0041] See also Figure 3 and Figure 8 The transmission component 2 61 includes a second annular guide rail 611 fixedly connected to the inner wall of the second screen frame 3, a second rotating ring 612 is rotatably installed on the inner side of the second annular guide rail 611, a second gear ring 613 is fixedly connected to the bottom of the second rotating ring 612, a second transmission rod 72 located below the second gear ring 613 is rotatably installed on the inner wall of the second screen frame 3, a second driving gear 73 is fixedly installed on one end of the second transmission rod 72 close to the center of the second screen frame 3, the second driving gear 73 is meshed with the second gear ring 613, the end of the second transmission rod 72 away from the center of the second screen frame 3 rotates through the outside of the second screen frame 3 and is connected to the output shaft of the drive motor 7 through the pulley component 2, and the top of the second rotating ring 612 is rotatably connected to the cleaning brush 62 through a fixed block.

[0042] See also Figure 3 and Figure 8 The rotating assembly 63 includes a second fixed gear ring 631 fixedly mounted on the inner wall of the second screen frame 3 and located between the screen surface 31 and the second annular guide rail 611 . The left end of the cleaning brush 62 is coaxially fixedly connected with a second gear 632 , and the second gear 632 is meshed with the second fixed gear ring 631 .

[0043] The driving motor 7 drives the second transmission rod 72 to rotate through the belt, and then the second transmission rod 72 drives the second gear ring 613 and the second rotating ring 612 to rotate through the second driving gear 73, and then the second rotating ring 612 drives the cleaning brush 62 to move in a circle around the edge of the screen surface 31. While the cleaning brush 62 moves, the fixed gear ring 631 drives the second gear 632 and the cleaning brush 62 to rotate, so that the cleaning brush 62 cleans the bottom edge of the screen surface 31 to prevent the screen surface 31 from being blocked by the compressed powder coating.

[0044] See also Figure 1 , Figure 3 and Fig. 9 The powder coating vibrating screening device also includes a dust suction mechanism 4 for dusting the first screen frame 2 and the second screen frame 3. The outer ring walls of the first screen frame 2 and the second screen frame 3 are fixedly connected with a discharge neck 21, and a discharge port is provided at the bottom of the discharge neck 21 away from the first screen frame 2. The dust suction mechanism 4 includes an upper dust suction component 41 installed on the top of the second screen frame 3, and a lower dust suction component 42 is installed on the top of the discharge neck 21. The upper dust suction component 41 and the lower dust suction component 42 are commonly connected with a conveying component 43, and the bottom of the conveying component 43 is connected with a dust collector 44.

[0045] See also Figure 1 and Figure 3 The upper dust suction component 41 includes a dust cover 411 which is detachably mounted on the second screen frame 3 through a clamping ring 8. A feed port is provided on the top of the dust cover 411. A trumpet-shaped first filter screen 412 is fixedly mounted inside the dust cover 411. The small mouth of the first filter screen 412 is connected to the feed port. A cavity is reserved between the dust cover 411 and the first filter screen 412. A first dust suction port 413 is provided on the right side of the dust cover 411.

[0046] See also Figure 3 and Fig. 9 The lower dust suction component 42 includes a second dust suction port 421 opened at the top of the discharge neck 21, and a second filter 422 is fixedly installed inside the second dust suction port 421. The conveying component 43 includes a trumpet tube 431 fixedly connected to the first dust suction port 413 and the second dust suction port 421, and the trumpet tube 431 is connected to the dust collector 44 through a fixedly connected dust suction pipe 432.

[0047] When adding powder coating from the feed port to the screen surface 31 in the second screen frame 3, some fine powder will float in the process of loading. After being filtered by the first filter screen 412, this part of fine powder is sucked into the dust suction pipe 432 from the first dust suction port 413, and finally is sucked into the dust collector 44. The first filter screen 412 plays a role in filtering the powder coating to prevent the powder coating from being sucked into the dust suction pipe 432; when discharging, some of the same fine powder that floats in the air is sucked into the dust suction pipe 432 from the second dust suction port 421 after passing through the second filter screen 422, and finally is sucked into the dust collector 44. This can prevent the fine powder from falling into the sieved powder coating to avoid affecting the uniformity of the powder coating, and can also prevent the floating fine powder from affecting the operating environment.

[0048] See also Figure 1-Figure 9 When used specifically, step one is to vibrate the first sieve frame 2 and the second sieve frame 3 by the vibration base 1, and then add the powder coating into the second sieve frame 3 from the feed port, and start the vacuum cleaner 44 at the same time. The fine powder floating during feeding is filtered by the first filter screen 412 and then sucked into the vacuum pipe 432 from the first vacuum port 413, and finally sucked into the vacuum cleaner 44.

[0049] Step 2, the screen surface 31 is used to screen the powder coating by the vibration of the second screen frame 3, and the first driving gear 71 is driven to rotate by the driving motor 7, and then the first driving gear 71 drives the first gear ring 544 and the first rotating ring 542 to rotate, and then the first rotating ring 542 drives the cross plate 521 to rotate through the connecting piece 543, so that the U-shaped frame 511 and the mounting frame 531 are moved along the second screen frame 3. When the U-shaped frame 511 moves around the second screen frame 3, the first gear 514 can rotate under the drive of the fixed gear ring 515, and then the first gear 514 drives the feed roller 512, and the feed roller 512 drives the pressing roller 513 to rotate through the belt, and the feed roller 512 is used to transport the agglomerated powder coating to the pressing roller 513, and then the pressing roller 513 presses and crushes the powder coating.

[0050] Step 2: When the horizontal plate 521 rotates around the second screen frame 3, the horizontal plate 521 rotates around the second screen frame 3 with the connecting rod 522 and the shovel plate 523. At this time, the shovel plate 523 can shovel up the powder coating flattened on the surface of the screen surface 31, and cooperate with the vibration of the screen surface 31 itself to disperse the powder coating.

[0051] Step three, when the mounting frame 531 rotates around the second screen frame 3, the feed roller 512 drives the first transmission rod 537 to rotate through the belt, and then the first transmission rod 537 drives the shaft 532 and the transmission wheel 533 to rotate through the bevel gear set, and then the transmission wheel 533 drives the transmission belt 534 and the L-shaped push plate 535 to rotate, so that the L-shaped push plate 535 at the bottom transports the powder coating to the center of the screen surface 31 to prevent the powder coating from accumulating on the edge of the screen surface 31.

[0052] Step 4, the driving motor 7 drives the second transmission rod 72 and the second driving gear 73 to rotate through the belt, and then the second driving gear 73 drives the second gear ring 613 and the second rotating ring 612 to rotate, and then the second rotating ring 612 drives the cleaning brush 62 to move in a circle around the edge of the screen surface 31. While the cleaning brush 62 moves, the fixed gear ring 631 drives the second gear 632 and the cleaning brush 62 to rotate, so that the cleaning brush 62 cleans the bottom edge of the screen surface 31 to prevent the screen surface 31 from being blocked by the compressed powder coating.

[0053] Step 5. The powder coating after being screened by the screen surface 31 falls into the first screen frame 2, and then is transported to the discharge neck 21 on the side of the first screen frame 2 after vibration, and then is discharged from the discharge port at the bottom thereof. The fine powder floating during the discharge is sucked into the dust suction pipe 432 from the second dust suction port 421, and finally is sucked into the dust collector 44. Finally, the powder coating that has not passed through the screen surface 31 is transported to the discharge neck 21 on the side of the second screen frame 3, and then is discharged from the discharge port at the bottom thereof.

[0054] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A powder coating vibrating screening device, comprising a vibrating base (1) and a first screen frame (2) and a second screen frame (3) mounted on the vibrating base (1) in order from bottom to top, wherein the vibrating base (1) and the first screen frame (2), and the first screen frame (2) and the second screen frame (3) are detachably connected via a clamping ring (8), and characterized in that: A screen surface (31) is fixedly connected to the interior of the second screen frame (3), a processing mechanism (5) and an anti-blocking mechanism (6) are installed in the second screen frame (3) and are located at upper and lower sides of the screen surface (31), respectively, and a driving motor (7) for driving the processing mechanism (5) and the anti-blocking mechanism (6) is installed on the outer ring wall of the second screen frame (3); The processing mechanism (5) comprises an agglomeration crushing assembly (51) arranged above the screen surface (31); a shoveling assembly (52) for shoveling powder coating is installed on the front side of the agglomeration crushing assembly (51); a pushing assembly (53) for pushing the powder coating toward the center of the screen surface (31) is installed on the front side of the shoveling assembly (52); and a transmission assembly (54) for driving the agglomeration crushing assembly (51), the shoveling assembly (52) and the pushing assembly (53) to move in a circle is installed on the inner wall of the second screen frame (3); The agglomeration crushing assembly (51) comprises a C-shaped frame (511) located above the screen surface (31), and a feed roller (512) and a pressure roller (513) are rotatably connected between two vertical sections of the C-shaped frame (511); The shoveling assembly (52) comprises a transverse plate (521) fixedly connected to the front side of the U-shaped frame (511), a plurality of connecting rods (522) are installed at equal intervals on the bottom of the transverse plate (521), an inclined shoveling plate (523) is fixedly connected to the bottom of the connecting rod (522), the rear end of the shoveling plate (523) is inclined to the left, and the bottom of the shoveling plate (523) contacts the top of the screen surface (31); The push assembly (53) comprises a mounting frame (531) fixedly connected to the front side of the transverse plate (521), the left and right ends of the mounting frame (531) are rotatably connected to shafts (532), the shafts (532) are coaxially fixedly connected to a transmission wheel (533), the outsides of the two transmission wheels (533) are connected to a transmission belt (534), a plurality of L-shaped push plates (535) are evenly installed on the outer circumference of the transmission belt (534), the horizontal section of the L-shaped push plates (535) is perpendicular to the pressure roller (513), the rear side of the mounting frame (531) is fixedly connected to a support block (536), the support block (536) is rotatably installed with a first transmission rod (537), the right end of the first transmission rod (537) is connected to the shaft (532) at the right end through a bevel gear set, and the left end of the first transmission rod (537) is connected to the feed roller (512) through a pulley assembly.

2. A powder coating vibrating screening device according to claim 1, characterized in that: The feed roller (512) is located above and behind the pressing roller (513); the feed roller (512) and the pressing roller (513) are connected via a belt drive; the left end of the feed roller (512) is coaxially fixedly connected to a first gear (514) located on the left side of the U-shaped frame (511); a fixed gear ring 1 (515) located below the first gear (514) is fixedly connected to the inner wall of the second screen frame (3); the fixed gear ring 1 (515) is meshed with the first gear (514).

3. A powder coating vibrating screening device according to claim 1, characterized in that: The anti-blocking mechanism (6) comprises a second transmission component (61) mounted on the inner wall of the second screen frame (3), a cleaning brush (62) being rotatably mounted on the second transmission component (61), the cleaning brush (62) being located directly below the agglomeration crushing component (51), and a rotating component (63) for driving the cleaning brush (62) to rotate is also mounted on the inner wall of the second screen frame (3).

4. A powder coating vibrating screening device according to claim 1, characterized in that: The transmission component 1 (54) includes a first annular guide rail (541) fixedly connected to the inner wall of the second screen frame (3), a first rotating ring (542) is rotatably installed on the inner side of the first annular guide rail (541), a connecting member (543) is fixedly connected to the inner ring wall of the first rotating ring (542), the bottom of the connecting member (543) is fixedly connected to the top of the cross plate (521), the bottom of the first rotating ring (542) is fixedly connected to the first gear ring (544), the output shaft of the drive motor (7) rotates through the inner side of the second screen frame (3) and is fixedly connected to the first drive gear (71), and the first drive gear (71) is meshed with the first gear ring (544).

5. A powder coating vibrating screening device according to claim 3, characterized in that: The transmission assembly 2 (61) comprises a second annular guide rail (611) fixedly connected to the inner wall of the second sieve frame (3); a second rotating ring (612) is rotatably mounted on the inner side of the second annular guide rail (611); a second gear ring (613) is fixedly connected to the bottom of the second rotating ring (612); a second transmission rod (72) located below the second gear ring (613) is rotatably mounted on the inner wall of the second sieve frame (3); a second driving gear (73) is fixedly mounted on one end of the second transmission rod (72) close to the center of the second sieve frame (3); the second driving gear (73) is meshed with the second gear ring (613); an end of the second transmission rod (72) away from the center of the second sieve frame (3) rotates through the outer side of the second sieve frame (3) and is then connected to the output shaft of the driving motor (7) through the pulley assembly 2; and the top of the second rotating ring (612) is rotatably connected to the cleaning brush (62) through a fixed block.

6. A powder coating vibrating screening device according to claim 5, characterized in that: The rotating assembly (63) comprises a second fixed gear ring (631) fixedly mounted on the inner wall of the second screen frame (3) and located between the screen surface (31) and the second annular guide rail (611); the left end of the cleaning brush (62) is coaxially fixedly connected to a second gear (632); the second gear (632) is meshed with the second fixed gear ring (631).

7. A powder coating vibrating screening device according to claim 1, characterized in that: The invention also comprises a dust suction mechanism (4) for suctioning dust from the first sieve frame (2) and the second sieve frame (3); a discharge neck (21) is fixedly connected to the outer ring wall of each of the first sieve frame (2) and the second sieve frame (3); a discharge port is provided at the bottom of the discharge neck (21) away from the first sieve frame (2); the dust suction mechanism (4) comprises an upper dust suction component (41) mounted on the top of the second sieve frame (3); a lower dust suction component (42) is mounted on the top of the discharge neck (21); a conveying component (43) is connected to the upper dust suction component (41) and the lower dust suction component (42); and a dust collector (44) is connected to the bottom of the conveying component (43).

8. A powder coating vibrating screening device according to claim 7, characterized in that: The upper dust suction assembly (41) comprises a dust cover (411) which is detachably mounted on the second screen frame (3) via a clamping ring (8); a feed port is provided at the top of the dust cover (411); a trumpet-shaped first filter screen (412) is fixedly mounted inside the dust cover (411); a small opening of the first filter screen (412) is connected to the feed port; a cavity is reserved between the dust cover (411) and the first filter screen (412); and a first dust suction port (413) is provided on the right side of the dust cover (411).

9. A powder coating vibrating screening device according to claim 8, characterized in that: The lower dust suction component (42) comprises a second dust suction port (421) opened at the top of the discharge neck (21), a second filter (422) being fixedly installed inside the second dust suction port (421), and the conveying component (43) comprises a trumpet tube (431) fixedly connected to the first dust suction port (413) and the second dust suction port (421), and the trumpet tube (431) is connected to the dust collector (44) via the fixedly connected dust suction tube (432).

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