Zinc oxide powder screening device not prone to being blocked

Abstract

The utility model discloses a zinc oxide powder screening device not easy to block, which comprises a screening box, the bottom of the screening box is fixedly connected with supporting legs, and the outer side of the screening box is fixedly connected with a discharge pipe; the screening assembly is used for screening zinc oxide powder in the screening box, and the outer side of the screening assembly is fixedly connected with the inner side of the screening box. According to the device, the screening assembly is arranged, the output end of the driving motor drives a material pushing plate in the screening assembly to rotate so as to drive a telescopic rod to rotate, and in the rotating process of the telescopic rod, on one hand, an arc-shaped scraping plate at the top end of the telescopic rod rotates on the inner side of a screening plate to scrape zinc oxide powder on the screening plate, and screening holes are prevented from being blocked due to powder accumulation; by arranging the knocking part, the sieve plate is driven to vibrate, screening of the zinc oxide powder is further promoted, and the powder is prevented from blocking the sieve plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of zinc oxide production, and particularly relates to a zinc oxide powder screening device not prone to blockage. BACKGROUND

[0002] In the production and processing of zinc oxide powder, screening is a key link, and the purpose is to separate zinc oxide powder of different particle sizes to meet different use requirements. However, the existing zinc oxide powder screening device has many problems in use.

[0003] In the prior art, when the traditional screening device screens zinc oxide powder, the powder is easy to accumulate on the sieve plate, thereby blocking the sieve holes. This not only reduces the screening efficiency, but also may cause inaccurate screening results, affecting product quality. Because zinc oxide powder has certain viscosity and small particle size, it is easy to adhere to each other and accumulate on the surface of the sieve plate during the screening process, so that the sieve holes are gradually blocked, hindering the normal passage of the powder. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model solves the technical problems by adopting the following technical scheme: a zinc oxide powder screening device not prone to blockage, comprising: a screening box, the bottom of the screening box is fixedly connected with supporting legs, and the outer side of the screening box is fixedly connected with a discharge pipe; a screening assembly, the screening assembly is used for screening zinc oxide powder in the screening box, the outer side of the screening assembly is fixedly connected with the inner side of the screening box, the bottom of the screening box is fixedly connected with a drive motor, and the output end of the drive motor is fixedly connected with the bottom of the screening assembly; the screening assembly comprises a fixed ring, the top of the fixed ring is fixedly connected with a guide rod, the outer side of the guide rod is slidably connected with an annular plate, the bottom of the annular plate is fixedly connected with a buffer spring, the inner side of the annular plate is fixedly connected with a sieve plate, the inner side of the sieve plate is rotatably connected with an extension rod, the top end of the extension rod is fixedly connected with an arc-shaped scraper, the bottom end of the extension rod is fixedly connected with a pushing plate, the outer side of the extension rod is fixedly connected with a flow guide shell, the outer side of the flow guide shell is rotatably connected with a pressure roller, the top of the fixed ring is fixedly connected with a knocking component, the output end of the drive motor drives the pushing plate in the screening assembly to rotate, thereby driving the extension rod to rotate, and the arc-shaped scraper at the top end of the extension rod rotates on the inner side of the sieve plate in the rotating process, so that the zinc oxide powder on the sieve plate is scraped to prevent the powder from accumulating and blocking the sieve holes.

[0005] Preferably, the outer side of the fixed ring is fixedly connected with the inner wall of the screening box, the inner wall of the screening box is slidably connected with the outer side of the annular plate, and the bottom end of the buffer spring is fixedly connected with the top of the fixed ring. After the annular plate is knocked, it slides up and down on the guide rod while compressing or stretching the buffer spring. The vibration of the annular plate drives the vibration of the sieve plate.

[0006] Preferably, the bottom of the pushing plate is fixedly connected with the output end of the driving motor, the outer side of the flow guide shell is rotatably connected with the inner side of the sieve plate, and the outer side of the pressing wheel is in contact with the outer side of the knocking component.

[0007] Preferably, the knocking component comprises a limiting cylinder, a sliding rod is slidably connected with the inner wall of the limiting cylinder, a knocking block is fixedly connected with the top of the sliding rod, a pushing plate is fixedly connected with the outer wall of the bottom of the sliding rod, a limiting block is rotatably connected with the inner wall of the bottom of the sliding rod, and a compression spring is fixedly connected with the bottom of the limiting block.

[0008] Preferably, the bottom of the limiting cylinder is fixedly connected with the top of the fixed ring, the top of the knocking block is in contact with the bottom of the annular plate, and the outer side of the pushing plate is in contact with the outer wall of the pressing wheel.

[0009] Preferably, the bottom end of the compression spring is fixedly connected with the bottom of the inner wall of the limiting cylinder, and the outer wall of the pushing plate is slidably connected with the inner wall of the limiting cylinder through an arc-shaped hole.

[0010] The utility model discloses the beneficial effects are as follows:

[0011] 1. The utility model discloses a screening assembly is set up, and the output end of driving motor drives the rotation of pushing plate in screening assembly, thereby driving telescopic link rotation, in the rotation process, on one hand, the arc-shaped scraper of its top end rotates the inner side of sieve plate, and the zinc oxide powder on the sieve plate is scraped, prevents powder to accumulate and block the sieve hole.

[0012] 2. The utility model discloses a knocking component is set up, and when the pressing wheel is contacted with the pushing plate in knocking component, the pressing wheel pushes the pushing plate and deflects downward along the arc-shaped hole, sliding rod slides down in limiting cylinder at this moment, and knocking block moves down. Meanwhile, compression spring is compressed under stress. When the pressing wheel is contacted with the pushing plate, limiting block pushes sliding rod and moves up under the elastic force of compression spring, so that knocking block hits the bottom of annular plate upward, and annular plate slides up and down on the guide rod after being knocked, and compression or stretch buffer spring is compressed. The vibration of annular plate drives the vibration of sieve plate, and further promotes the screening of zinc oxide powder, prevents powder and blocks sieve plate. DRAWINGS

[0013] Figure 1 is the front view of the utility model;

[0014] Figure 2 is the sectional view of the utility model;

[0015] Figure 3 is the structure schematic view of the screening assembly of the utility model;

[0016] Figure 4 is the structure schematic view of the knocking part of the utility model;

[0017] Figure 5 is the sectional view of the knocking part of the utility model.

[0018] In the figure: 1, screening box;2, support leg;3, discharge pipe;4, screening assembly;5, driving motor;40, knocking part;41, fixed ring;42, guide rod;43, buffer spring;44, annular plate;45, screen plate;46, telescopic rod;47, arc-shaped scraper;48, pushing plate;49, flow guide shell;410, press wheel;401, limiting cylinder;402, sliding rod;403, knocking block;404, toggle plate;405, limiting block;406, compression spring;407, arc-shaped hole. DETAILED DESCRIPTION

[0019] The utility model will be further explained in detail in combination with the drawings and specific embodiments. The embodiments of the utility model are given for example and description, and are not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical application of the utility model, and enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

[0020] Embodiment: please refer to Figure 1 - Figure 5 The utility model provides a kind of technical scheme: a zinc oxide powder screening device not easy to block, comprising:

[0021] The utility model provides a screening box 1, screening box 1's bottom fixedly connected with support leg 2, screening box 1's outside fixedly connected with discharge pipe 3, the screening subassembly 4, the screening subassembly 4 is used for screening zinc oxide powder in screening box 1, the outside of screening subassembly 4 is fixedly connected with the inside of screening box 1, and the bottom of screening box 1 is fixedly connected with drive motor 5, and the output of drive motor 5 is fixedly connected with the bottom of screening subassembly 4, and screening subassembly 4 includes fixed ring 41, and the top of fixed ring 41 is fixedly connected with guide rod 42, and the outside of guide rod 42 is slidably connected with annular plate 44, and the bottom of annular plate 44 is fixedly connected with buffer spring 43, and the inside of annular plate 44 is fixedly connected with sieve plate 45, and the inside of sieve plate 45 is rotatably connected with telescopic link 46, and the top of telescopic link 46 is fixedly connected with arc scraper 47, and the bottom of telescopic link 46 is fixedly connected with pusher plate 48, and the outside of telescopic link 46 is fixedly connected with flow guide shell 49, and the outside of flow guide shell 49 is rotatably connected with press wheel 410, and the top of fixed ring 41 is fixedly connected with knock part 40, and the outside of fixed ring 41 is fixedly connected with the inner wall of screening box 1, and the inner wall of screening box 1 is slidably connected with the outside of annular plate 44, and the bottom of buffer spring 43 is fixedly connected with the top of fixed ring 41, and the bottom of pusher plate 48 is fixedly connected with the output of drive motor 5, and the outside of flow guide shell 49 is rotatably connected with the inside of sieve plate 45, and the outside of press wheel 410 is in contact with the knock part 40 of fixed ring 41, when starting drive motor 5, the output of drive motor 5 drives pusher plate 48 in screening subassembly 4 to rotate, thereby driving telescopic link 46 to rotate, in the process of rotation, on the one hand, the arc scraper 47 at the top of telescopic link 46 rotates on the inside of sieve plate 45, and the zinc oxide powder on sieve plate 45 is scraped, prevents powder to accumulate and to block sieve hole. On the other hand, the flow guide shell 49 outside telescopic link 46 rotates, and the press wheel 410 outside flow guide shell 49 is in contact with knock part 40 on fixed ring 41 in the process of rotation, in the whole screening process, the rotation of pusher plate 48 can also push the zinc oxide powder screened from the bottom of screening box 1 and discharge through discharge pipe 3, and the flow guide shell 49 can also play the role of flow guide to zinc oxide powder in the process of rotation, so that it falls to the bottom of screening box 1 after screening.

[0022] The knocking part 40 comprises a limiting cylinder 401, the inner wall of the limiting cylinder 401 is slidably connected with a sliding rod 402, the top of the sliding rod 402 is fixedly connected with a knocking block 403, the outer wall of the bottom of the sliding rod 402 is fixedly connected with a pushing plate 404, the inner wall of the bottom of the sliding rod 402 is rotatably connected with a limiting block 405, the bottom of the limiting block 405 is fixedly connected with a compression spring 406, the bottom of the limiting cylinder 401 is fixedly connected with the top of the fixed ring 41, the top of the knocking block 403 is in contact with the bottom of the annular plate 44, the outer side of the pushing plate 404 is in contact with the outer wall of the pressing wheel 410, the bottom end of the compression spring 406 is fixedly connected with the bottom of the inner wall of the limiting cylinder 401, the outer wall of the pushing plate 404 is slidably connected with the inner wall of the limiting cylinder 401 through an arc-shaped hole 407, and the arc-shaped hole 407 is arranged in the wall of the limiting cylinder 401, when the pressing wheel 410 is in contact with the pushing plate 404 in the knocking part 40, the pressing wheel 410 pushes the pushing plate 404 to deflect downward along the arc-shaped hole 407, at this time, the sliding rod 402 slides downward in the limiting cylinder 401, and drives the knocking block 403 to move downward. At the same time, the limiting block 405 rotatably connected with the inner wall of the bottom of the sliding rod 402 compresses the compression spring 406. When the pressing wheel 410 is out of contact with the pushing plate 404, under the elastic force of the compression spring 406, the limiting block 405 pushes the sliding rod 402 to move upward, so that the knocking block 403 impacts the bottom of the annular plate 44 upward, the annular plate 44 slides up and down on the guide rod 42 after being impacted, and the buffer spring 43 is compressed or stretched. The vibration of the annular plate 44 drives the sieve plate 45 to vibrate, further promotes the screening of the zinc oxide powder, and prevents the powder from blocking the sieve plate 45.

[0023] Working principle:

[0024] In use, when the driving motor 5 is started, the output end of the driving motor 5 drives the pushing plate 48 in the screening assembly 4 to rotate, so as to drive the telescopic rod 46 to rotate. In the rotating process, on the one hand, the arc-shaped scraper 47 at the top end of the telescopic rod 46 rotates at the inner side of the sieve plate 45, and the zinc oxide powder on the sieve plate 45 is scraped to prevent the powder from being accumulated and blocked in the sieve hole. On the other hand, the flow guide shell 49 at the outer side of the telescopic rod 46 rotates, and the pressing wheel 410 at the outer side of the flow guide shell 49 is in contact with the knocking part 40 on the fixed ring 41 in the rotating process.

[0025] When the pressing wheel 410 is in contact with the push plate 404 in the knocking component 40, the pressing wheel 410 pushes the push plate 404 to deflect downward along the arc-shaped hole 407, at this time, the sliding rod 402 slides downward in the limiting cylinder 401, and the knocking block 403 is driven to move downward. At the same time, the limiting block 405 connected to the inner wall of the bottom of the sliding rod 402 rotates and compresses the compression spring 406. When the pressing wheel 410 is out of contact with the push plate 404, under the elastic force of the compression spring 406, the limiting block 405 pushes the sliding rod 402 to move upward, so that the knocking block 403 impacts the bottom of the annular plate 44 upward, and the annular plate 44 slides up and down on the guide rod 42 after being impacted, and the buffer spring 43 is compressed or stretched. The vibration of the annular plate 44 drives the sieve plate 45 to vibrate, further promotes the screening of the zinc oxide powder, and prevents the powder from blocking the sieve plate 45.

[0026] During the whole screening process, the rotation of the pushing plate 48 can also push the screened zinc oxide powder out from the bottom of the screening box 1, and the zinc oxide powder is discharged through the discharge pipe 3, and the flow guide shell 49 can also play a flow guiding role on the zinc oxide powder during the rotation process, so that the zinc oxide powder falls to the bottom of the screening box 1 after being screened. The supporting leg 2 can support the screening box 1.

[0027] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A non-clogging zinc oxide powder screening device, characterized by, Include: The screening box (1), the bottom of the screening box (1) is fixedly connected with support leg (2), the outer side of the screening box (1) is fixedly connected with discharge pipe (3); Screening assembly (4), the screening assembly (4) is used for screening zinc oxide powder in the screening box (1), the outer side of the screening assembly (4) is fixedly connected with the inner side of the screening box (1), the bottom of the screening box (1) is fixedly connected with drive motor (5), the output end of the drive motor (5) is fixedly connected with the bottom of the screening assembly (4); The screening assembly (4) includes fixed ring (41), the top of the fixed ring (41) is fixedly connected with guide rod (42), the outer side of the guide rod (42) is slidably connected with annular plate (44), the bottom of the annular plate (44) is fixedly connected with buffer spring (43), the inner side of the annular plate (44) is fixedly connected with sieve plate (45), the inner side of the sieve plate (45) is rotatably connected with telescopic rod (46), the top end of the telescopic rod (46) is fixedly connected with arc-shaped scraper (47), the bottom end of the telescopic rod (46) is fixedly connected with push plate (48), the outer side of the telescopic rod (46) is fixedly connected with flow guide shell (49), the outer side of the flow guide shell (49) is rotatably connected with pressure roller (410), the top of the fixed ring (41) is fixedly connected with knocking component (40).

2. A clogging resistant zinc oxide powder screening device according to claim 1, characterized in that: The outer side of the fixed ring (41) is fixedly connected with the inner wall of the screening box (1), the inner wall of the screening box (1) is slidably connected with the outer side of the annular plate (44), the bottom end of the buffer spring (43) is fixedly connected with the top of the fixed ring (41).

3. A clogging resistant zinc oxide powder screening device according to claim 1, characterized in that: The bottom of the push plate (48) is fixedly connected with the output end of the drive motor (5), the outer side of the flow guide shell (49) is rotatably connected with the inner side of the sieve plate (45), the outer side of the pressure roller (410) is in contact with the outer side of the knocking component (40).

4. A clogging resistant zinc oxide powder screening device according to claim 1, characterized in that: The knocking component (40) includes limiting barrel (401), the inner wall of the limiting barrel (401) is slidably connected with sliding rod (402), the top of the sliding rod (402) is fixedly connected with knocking block (403), the outer wall of the bottom of the sliding rod (402) is fixedly connected with toggle plate (404), the inner wall of the bottom of the sliding rod (402) is rotatably connected with limiting block (405), the bottom of the limiting block (405) is fixedly connected with compression spring (406).

5. A clogging resistant zinc oxide powder screening device according to claim 4, characterized in that: The bottom of the limiting barrel (401) is fixedly connected with the top of the fixed ring (41), the top of the knocking block (403) is in contact with the bottom of the annular plate (44), the outer side of the toggle plate (404) is in contact with the outer wall of the pressure roller (410).

6. A clogging resistant zinc oxide powder screening device according to claim 4, characterized in that: The bottom end of the compression spring (406) is fixedly connected with the bottom of the inner wall of the limiting barrel (401), the outer wall of the toggle plate (404) is slidably connected with the inner wall of the limiting barrel (401) through arc-shaped hole (407), and the arc-shaped hole (407) is formed in the wall of the limiting barrel (401).

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