CN219631872U

CN219631872U - Material screening device

Info

Publication number: CN219631872U
Application number: CN202321306398.2U
Authority: CN
Inventors: 杨庭雷
Original assignee: Luoyang Mirage Powder Coating Co ltd
Current assignee: Luoyang Mirage Powder Coating Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-09-05
Anticipated expiration: 2033-05-26

Abstract

The utility model discloses a material screening device, which relates to the technical field of material screening devices and comprises a barrel box, a scraping unit for conveying and grinding and a lifting assembly; the lower end of the inner part of the barrel box is provided with a conical screen, the middle part of the barrel box is provided with a transmission mechanism, and the upper end of the inner part of the barrel box is provided with a guide hopper; the scraping unit comprises a rotary drum which rotates and is connected in the drum box in a sliding way, scraping plates are arranged at the circumference of the lower end of the interior of the rotary drum at equal intervals, a conical top drum is arranged at the upper end of the interior of the rotary drum, a threaded material carrying groove is arranged at the circumference of the rotary drum at equal intervals, and a material discharging hole is arranged at the circumference of the upper end of the interior of the rotary drum at equal intervals; according to the utility model, the rotary drum rotates and slides, the scraper is used for stirring the powder coating, so that the powder coating is prevented from being bonded in the screening process, meanwhile, the large-particle powder coating is scraped into the belt trough, the screening efficiency is ensured, meanwhile, the large-particle powder coating is timely discharged for grinding, the powder particles rotate on a plane and simultaneously rotate on a vertical plane during grinding, the stress is uniform, and the grinding effect is better.

Description

Material screening device

Technical Field

The utility model relates to the technical field of material screening devices, in particular to a material screening device.

Background

Material screening is an important industrial process step commonly used to separate impurities or solids having different particle sizes and shapes from mixtures to improve product quality, improve production efficiency, meet industry standards, and avoid equipment failure, etc. Powder coating screening is a process of physically separating powder coating, and when the powder coating is manufactured or processed, impurities such as particles, agglomerates and the like which do not meet the standard are mixed with particles with different particle sizes in the raw materials or the production process, and the particles and the impurities which do not meet the standard can be completely or partially removed from the powder coating through powder coating screening, so that the purpose of meeting the design requirement is achieved; meanwhile, the powder coating is sieved, so that the particle size distribution of the powder coating is more uniform, and the quality and the service performance of the powder coating are improved.

The patent publication No. CN112691729A discloses a powder coating grinding and screening device, which mainly utilizes the cooperation of the elasticity of a cam and a spring to screen powder coating, and then the powder coating is conveyed and ground by a spiral blade to screen for the second time.

Through comparison document and prior art can know, in the field, to the screening of material screening plant, most devices are when screening, carry the large granule powder that sieves out again to grinding equipment and grind the back screening, and powder coating constantly adds when screening, and large granule is more easy to stay on the screen, or will cause the material to pile up briefly to influence the efficiency of screening, not enough in time to the powder granule processing of sieving out, the efficiency of screening grinding is lower, the effect is relatively poor.

Disclosure of Invention

The utility model aims to solve the problems and provide a material screening device.

The utility model realizes the above purpose through the following technical scheme:

a material screening device comprises a barrel box, a scraping unit for conveying and grinding and a lifting assembly;

cartridge box: the lower end of the inner part is provided with a conical screen, the middle part of the barrel box is provided with a transmission mechanism, and the upper end of the inner part of the barrel box is provided with a guide hopper; the powder coating to be sieved is added from the upper side of the cylinder box, and can flow onto the conical screen through the guide hopper.

Scraping unit: the automatic powder coating machine comprises a rotary drum which rotates and is in sliding connection in a drum box, wherein scraping plates are arranged at the circumference of the lower end of the interior of the rotary drum at equal intervals, the rotary drum can slide up and down by utilizing a lifting assembly when rotating, when the rotary drum slides downwards, the circumference of a conical screen can be applied with force to enable the rotary drum to vibrate, powder coating flowing to the middle part of the conical screen is vibrated to the circumference, meanwhile, the rotary drum can stir the powder coating on the conical surface of the conical screen through the scraping plates in the rotating process, a conical top drum is arranged at the upper end of the interior of the rotary drum, threaded material carrying grooves are formed in the circumference of the rotary drum at equal intervals, discharge holes are formed at the circumference of the upper end of the interior of the rotary drum at equal intervals, the discharge holes are correspondingly communicated with the material carrying grooves, in the rotating process of the rotary drum, the scraping plates can scrape the large-particle powder coating which does not pass through the conical screen into the material carrying grooves, friction force is generated by contacting the inner wall of the drum box, the large-particle powder coating can be conveyed to the discharge holes in the rotating process of the rotary drum with the threaded material carrying grooves, and then discharged to the conical top drum, and the large-particle coating is arranged on the conical top drum when the rotary drum rotates with the conical top drum and moves along with the conical top drum, and the large-particle coating material is matched with the cylindrical guide drum at the middle part of the powder coating drum; the ground powder coating can be screened near the cylindrical screen in the rotating process of the conical top cylinder, and the screened powder coating can flow onto the conical screen again.

Lifting assembly: is arranged inside the barrel box.

Further, the lifting component comprises a wave groove, guide posts are arranged at the circumference of the lower end of the rotary drum at equal intervals, and the guide posts are in sliding connection in the wave groove. When the transmission mechanism drives the rotary drum to rotate, the rotary drum can slide up and down in the drum box due to the fact that the guide pillar is matched in the wave groove.

Further, the taper of the upper side of the conical top cylinder is larger than that of the lower side of the guide hopper, and the scraping plate is tangent to the material carrying groove. When large-particle powder coating is conveyed into the upper side of the conical top cylinder, the large-particle powder coating gradually approaches the circle center position in the rotating process of the conical top cylinder, and meanwhile, the rotary cylinder moves upwards to be close to the guide hopper with the conical top cylinder.

Further, the transmission mechanism comprises a belt ring which is rotatably connected to the drum box, the drum is in sliding connection with the belt ring, and the belt ring is matched with the power mechanism. When the power mechanism works, the belt ring is driven to rotate, and the belt ring can be driven to rotate by the rotary drum.

Further, the barrel box is divided into an upper part and a lower part, the upper part and the lower part are connected through arch plates, and a discharge hopper is arranged at the lower end of one side of the barrel box. The powder coating after screening can flow out from the discharge hopper through the barrel box.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the rotary drum drives the scraper to rotate and slide, so that the powder coating on the conical surface of the conical screen is stirred, the powder coating is prevented from being bonded in the screening process, meanwhile, the large-particle powder coating is scraped into the belt trough, the screening efficiency is ensured, meanwhile, the large-particle powder coating is timely discharged, and the screening effect is better.

2. According to the utility model, the conical top cylinder rotates and slides, the powder particles roll on the conical top cylinder, the position closer to the center of a circle is narrower, and the guide hopper applies tangential force on the vertical surface to the powder particles, so that the powder particles rotate on the plane and simultaneously rotate on the vertical surface, the uniform pressure is applied, and the grinding effect is better.

3. According to the utility model, the rotary drum rotates in the drum box and slides simultaneously, and when the rotary drum slides downwards, the circumference of the conical screen can be forced to vibrate, so that the powder coating flowing to the middle part of the conical screen is vibrated to the circumference, and the screening efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of the overall construction of a material screening apparatus according to the present utility model;

FIG. 2 is a schematic view of a front cross-sectional structure of a material screening apparatus according to the present utility model;

FIG. 3 is a schematic view of an exploded view of a material screening apparatus according to the present utility model;

FIG. 4 is a schematic view of the internal fit of a bin of a material screening apparatus according to the present utility model;

FIG. 5 is a schematic view of the overall structure of a drum of a material screening apparatus according to the present utility model;

FIG. 6 is a schematic view of the interior of a drum of a material screening apparatus according to the present utility model;

FIG. 7 is a schematic view of the overall configuration of the drum assembly of a material screening apparatus according to the present utility model;

FIG. 8 is a schematic view of the overall configuration of a material screening apparatus according to the present utility model with the bowl in the down position;

FIG. 9 is a schematic view of the configuration of the material screening apparatus according to the present utility model in the upper position of the drum;

fig. 10 is a schematic structural view of a guide post of a material screening device according to the present utility model cooperating with a wave groove.

The reference numerals are explained as follows:

1. a cartridge; 2. a conical screen; 3. a guide hopper; 4. a cylindrical screen; 5. a rotating drum; 6. a conical top cylinder; 7. a belt trough; 8. a discharge hole; 9. a scraper; 10. a wave trough; 11. a guide post; 12. discharging a hopper; 13. a transmission mechanism; 14. a belt loop.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model is further described below with reference to the accompanying drawings:

examples

As shown in fig. 1 to 10, a material screening device comprises a barrel box 1, a scraping unit for conveying and grinding and a lifting assembly;

barrel case 1: the lower end of the inner part is provided with a conical screen 2, the middle part of the barrel box 1 is provided with a transmission mechanism 13, and the upper end of the inner part of the barrel box 1 is provided with a guide hopper 3; as shown in fig. 1 and 2, the powder coating to be sieved is fed from the upper side of the cartridge 1, i.e. flows onto the conical screen 2 via the guide hopper 3, so that sieving of the powder coating is achieved.

Scraping unit: the rotary drum 5 is rotationally and slidingly connected in the drum box 1, scraping plates 9 are arranged at the circumference of the lower end of the inner part of the rotary drum 5 at equal intervals, as shown in fig. 2 and 8, the rotary drum 5 can slide up and down by utilizing a lifting component when rotating, the circumference of the conical screen 2 can be forced to vibrate when the rotary drum 5 slides down, the powder coating flowing to the middle part of the conical screen 2 is vibrated to the circumference, the screening efficiency is improved, meanwhile, the rotary drum 5 can stir the powder coating on the conical surface of the conical screen 2 through the scraping plates 9 in the rotating process, the powder coating adhesion and the like in the screening process are prevented, the screening efficiency is stabilized, the conical top drum 6 is arranged at the upper end of the inner part of the rotary drum 5, the circumference of the rotary drum 5 is provided with a threaded material carrying groove 7 at equal intervals, the circumference of the upper end of the inner part of the rotary drum 5 is provided with a discharging hole 8 at equal intervals, the discharging hole 8 is correspondingly communicated with the material carrying groove 7, as shown in fig. 2, 5 and 7, in the rotating process of the rotary drum 5 with the scraping plate 9, the scraping plate 9 can scrape the large-particle powder coating which does not pass through the conical screen 2 into the material carrying groove 7, friction force is generated by contact between the large-particle powder coating and the inner wall of the drum box 1 after the powder coating enters, in the rotating process of the rotary drum 5 with the threaded material carrying groove 7, the large-particle powder coating can be conveyed to the material discharging hole 8 and then discharged onto the conical top drum 6, when the rotary drum 5 rotates and moves upwards with the conical top drum 6, the large-particle powder coating on the conical top drum 6 rotates and is matched with the lower side of the guide hopper 3 at the same time, so that grinding of the large-particle powder coating can be timely carried and ground, the screening grinding efficiency is higher, the effect is better, the middle part of the lower end of the guide hopper 3 is provided with the cylindrical screen 4, and the cylindrical screen 4 is positioned in the middle part of the conical top drum 6; as shown in fig. 2, the ground powder coating can be screened near the cylindrical screen 4 in the rotating process of the conical top cylinder 6, and the screened powder coating can flow onto the conical screen 2 again for screening, so that the overall screening effect is better.

Lifting assembly: is arranged inside the barrel 1.

The lifting component comprises a wave groove 10, guide posts 11 are arranged on the circumference of the lower end of the rotary drum 5 at equal intervals, and the guide posts 11 are slidably connected in the wave groove 10. As shown in fig. 2, 7 and 10, when the transmission mechanism 13 rotates with the drum 5, the drum 5 can slide up and down in the drum box 1 due to the fact that the guide pillar 11 is matched in the wave groove 10, the drum rotates and slides simultaneously, the conical screen 2 can vibrate, screening efficiency is stabilized, and meanwhile, the screened large-particle powder coating is timely conveyed and ground, so that screening and grinding efficiency is higher, and the effect is better.

The taper of the upper side of the conical top cylinder 6 is larger than that of the lower side of the guide hopper 3, and the scraping plate 9 is tangential with the material carrying groove 7. As shown in fig. 8, when large-particle powder coating is conveyed into the upper side of the cone-shaped top cylinder 6, in the rotating process of the cone-shaped top cylinder 6, the drum 5 is gradually close to the center position, and meanwhile, the drum 5 moves upwards with the cone-shaped top cylinder 6 to be close to the guide hopper 3, because the taper of the upper side of the cone-shaped top cylinder 6 is larger than that of the lower side of the guide hopper 3, the narrower the closer the center position is, the guide hopper 3 applies a tangential force for rotating on the vertical surface to the large-particle powder coating when moving upwards, so that the large-particle powder coating rotates on the vertical surface while rotating on the rotating plane of the cone-shaped top cylinder 6, the uniform pressure is exerted, the grinding effect is improved, the screening grinding effect is better, and the efficiency is higher.

The transmission mechanism 13 comprises a belt ring 14 rotatably connected to the drum 1, the drum 5 is slidably connected to the belt ring 14, and the belt ring 14 is matched with the power mechanism. As shown in fig. 2, 7 and 8, when the power mechanism works, the belt ring 14 rotates, and the belt ring 14 can rotate with the rotary drum 5 to provide a power basis for rotation and lifting.

The barrel box 1 is divided into an upper part and a lower part, the two parts are connected through a arch plate, and a discharge hopper 12 is arranged at the lower end of one side of the barrel box 1. As shown in fig. 2, the powder coating after sieving can flow out from the hopper 12 through the cartridge 1, so as to be convenient for collection.

Working principle: when in use, as shown in figures 1-10, powder coating to be screened is added from the upper side of a cylinder box 1, flows onto a conical screen 2 through a guide hopper 3, and a power mechanism works to screen the powder coating;

as shown in fig. 2, 7, 8 and 10, when the power mechanism works, the belt ring 14 drives the rotary drum 5 to rotate, and as the guide pillar 11 is matched in the wave groove 10, the rotary drum 5 can slide up and down in the drum box 1, and slide simultaneously when rotating, the rotary drum can apply force to the circumference of the conical screen 2, so that the rotary drum vibrates, the powder coating flowing to the middle part of the conical screen 2 is vibrated to the circumference, and the screening efficiency is improved; meanwhile, in the rotating process of the rotary drum 5, powder coating on the conical surface of the conical screen 2 can be stirred by the scraping plate 9, so that the powder coating is prevented from being bonded and the like in the screening process, and the screening efficiency is stabilized;

as shown in fig. 2, fig. 5, fig. 7 and fig. 8, in the process of rotating the rotary drum 5 with the scraping plate 9, the scraping plate 9 can scrape the large-particle powder coating which does not pass through the conical screen 2 into the material carrying groove 7, friction force is generated by contact with the inner wall of the drum box 1 after the powder coating enters, in the process of rotating the rotary drum 5 with the threaded material carrying groove 7, the large-particle powder coating can be conveyed to the material discharging hole 8 and then discharged to the conical top drum 6, when the rotary drum 5 rotates with the conical top drum 6 and moves upwards, the large-particle powder coating on the conical top drum 6 rotates and simultaneously cooperates with the lower side of the guide hopper 3, grinding of the large-particle powder coating is realized, and when the large-particle powder coating is conveyed into the upper side of the conical top drum 6, in the rotating process of the conical top drum 6, the rotary drum 5 moves upwards to be close to the guide hopper 3, and the conical top drum 6, and the tangential force applied to the vertical surface of the large-particle powder coating can be more uniformly pressed on the vertical surface when the vertical surface of the guide hopper 3 moves upwards, so that the vertical surface of the large-particle powder coating can be more uniformly pressed, and the grinding effect is improved;

as shown in fig. 2, the ground powder coating can be screened near the cylindrical screen 4 in the rotating process of the conical top cylinder 6, and the screened powder coating can flow onto the conical screen 2 again for screening, so that the overall screening effect is better.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. A material screening apparatus, comprising: the device comprises a barrel box (1), a scraping unit for conveying and grinding and a lifting assembly;

barrel box (1): the lower end of the inner part is provided with a conical screen (2), the middle part of the barrel box (1) is provided with a transmission mechanism (13), and the upper end of the inner part of the barrel box (1) is provided with a guide hopper (3);

scraping unit: contain rotation and sliding connection be in rotary drum (5) in barrel casing (1), the inside lower extreme circumference equidistance of rotary drum (5) is equipped with scraper blade (9), the inside upper end of rotary drum (5) is equipped with cone-shaped top section of thick bamboo (6), the circumference equidistance of rotary drum (5) is equipped with screw thread form's area feed slot (7), the inside upper end circumference equidistance of rotary drum (5) is equipped with discharge hole (8), discharge hole (8) correspond with area feed slot (7) communicate with each other, the lower extreme middle part of guide hopper (3) is equipped with tubular screen cloth (4), tubular screen cloth (4) are located the middle part of cone-shaped top section of thick bamboo (6);

lifting assembly: is arranged inside the barrel box (1).

2. A material screening apparatus according to claim 1, wherein: the lifting assembly comprises a wave groove (10), guide posts (11) are arranged at equal intervals on the circumference of the lower end of the rotary drum (5), and the guide posts (11) are slidably connected in the wave groove (10).

3. A material screening apparatus according to claim 1, wherein: the taper of the upper side of the conical top cylinder (6) is larger than that of the lower side of the guide hopper (3), and the scraping plate (9) is tangential to the material carrying groove (7).

4. A material screening apparatus according to claim 1, wherein: the transmission mechanism (13) comprises a belt ring (14) rotatably connected to the barrel box (1), the rotary barrel (5) is in sliding connection with the belt ring (14), and the belt ring (14) is matched with the power mechanism.

5. A material screening apparatus according to claim 1, wherein: the barrel box (1) is divided into an upper part and a lower part, the upper part and the lower part are connected through arch plates, and a discharge hopper (12) is arranged at the lower end of one side of the barrel box (1).