Multi-layer screening device for alumina powder

Abstract

The utility model relates to the technical field of alumina powder multi-layer screening devices, and provides an alumina powder multi-layer screening device which comprises an equipment shell, a plurality of sets of lower supporting plates are installed on the inner wall of the equipment shell, upper supporting plates are rotatably installed on the lower supporting plates, and screening devices are installed on the upper supporting plates. A jacking device used for preventing the screen opening from being blocked is installed between the lower supporting plate and the upper supporting plate. Through the arrangement of the jacking device, under the action of the supporting column, the driving motor is started to drive the convex disc to rotate, when the protruding part on the convex disc makes contact with the guiding wheel, the convex disc jacks the upper supporting plate so that the upper supporting plate can rotate, accumulated aluminum oxide powder is distributed to the screening plate under the action of gravity, and the screening effect is good. And the situation that the screening efficiency is low due to powder accumulation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to alumina powder multilayer screening device technical field, specifically is a kind of alumina powder multilayer screening device. BACKGROUND

[0002] Alumina powder can be used as the coating material of various glasses, in the production of alumina powder, powder is separated into different grades according to size by using screening device, the existing multistage screening device, when screening alumina powder, most of the powder is directly poured into the way to screen, because powder is stacked together and cannot be spread, it may cause the situation that sieve opening is blocked, so that screening speed slows down, thereby leading to low screening efficiency. SUMMARY

[0003] To overcome the defects of prior art, the utility model provides a kind of alumina powder multilayer screening device, solve the problem of low screening efficiency caused by powder accumulation.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of alumina powder multilayer screening device, including equipment shell, the inner wall of the equipment shell is installed with multiple groups of lower support plate, rotatingly installed with upper support plate on the lower support plate, and screening device is installed on the upper support plate, and the lower support plate and the upper support plate between are installed with the jacking device for avoiding sieve opening being blocked;

[0006] The jacking device includes two groups of support frames fixedly installed on the upper support plate, the drive motor is fixedly installed on the upper support plate, and the support column is rotatably installed between the two groups of support frames and is fixedly connected with the output end of the drive motor, the convex disc is fixedly installed on the support column, the fixed block corresponding with the position of convex disc is fixedly installed on the lower support plate, and the guide wheel is rotatably installed on the fixed block.

[0007] Preferably, the screening device includes screening plate slidingly installed in the upper support plate, and the symmetric two groups of vibration motors are fixedly installed on the two sides of the upper support plate, and the equipment shell is fixedly installed with multiple groups of material dropping inclined plates located at the bottom of material dropping port.

[0008] Preferably, the lower support plate is provided with material dropping port.

[0009] Preferably, the upper support plate is provided with cleaning device for cleaning sieve opening, the cleaning device includes support rod fixedly installed on the upper support plate, and sliding frame slidingly installed on the support rod, one end of the support column is fixedly installed with connecting rod, and rotating rod is rotatably installed between the connecting rod and the sliding frame, the bottom of the sliding frame is slidingly installed with T-shaped bracket, and the bottom of the T-shaped bracket is fixedly installed with multiple groups of bevel blocks.

[0010] Preferably, the collecting device is installed in the equipment shell, the collecting device comprises a plurality of groups of slots formed on the equipment shell, the screening plate is provided with fastening bolts in threaded connection with the upper support plate, and the blanking box is slidably installed in the equipment shell.

[0011] Preferably, the top of the equipment shell is provided with a feeding port.

[0012] Compared with the prior art, the device has the beneficial effects that:

[0013] 1. The jacking device is arranged, under the action of the supporting column, to drive the convex disc to rotate, when the convex disc is in contact with the guide wheel, the convex disc is lifted to make the upper support plate rotate, and the accumulated aluminum oxide powder is distributed on the screening plate under the action of gravity, so that the powder is not accumulated to cause low screening efficiency.

[0014] 2. The device is arranged, the convex disc is rotated to drive the connecting rod to rotate, the connecting rod is rotated to drive the rotating rod to move, the rotating rod drives the sliding frame to move on the supporting rod, so that the inclined edge block on the T-shaped frame is moved to clean the screen opening on the screening plate, and the screen opening is not blocked to affect the screening efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a whole structure schematic view of the equipment shell inside the utility model;

[0018] Figure 3 It is a schematic view of the position relationship between the upper support plate and the lower support plate of the utility model;

[0019] Figure 4 It is a schematic view of the position relationship between the lower support plate and the blanking port of the utility model;

[0020] Figure 5 It is a whole structure schematic view of the cleaning device of the utility model.

[0021] In the figure: 1, device shell; 6, lower support plate; 7, upper support plate; 2, jacking device; 21, support frame; 22, drive motor; 23, support column; 24, convex disc; 25, fixed block; 26, guide wheel; 3, screening device; 31, screening plate; 32, vibration motor; 33, blanking inclined plate; 4, cleaning device; 41, support rod; 42, connecting rod; 43, rotating rod; 44, sliding frame; 45, T-shaped frame; 46, bevel block; 5, collecting device; 51, slot; 52, fastening bolt; 53, blanking box; 8, feed inlet; 9, blanking port. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail with reference to the accompanying drawings and examples, so that the realization process of how the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0023] Example 1

[0024] Because the powder is accumulated together and cannot be spread out, it may cause the screen opening to be blocked, which makes the screening speed slow, thereby resulting in low screening efficiency. Referring to Figures 1-5 , the present embodiment proposes a multi-layer screening device for aluminum oxide powder, which solves the problem of low screening efficiency caused by powder accumulation by the setting of the jacking device 2. The device includes a device shell 1, a plurality of lower support plates 6 are installed on the inner wall of the device shell 1, an upper support plate 7 is rotatably installed on the lower support plate 6, and a jacking device 2 for preventing the screen opening from being blocked is installed between the lower support plate 6 and the upper support plate 7. By starting the jacking device 2 through the drive motor 22, the upper support plate 7 is rotated, the accumulated powder on the upper support plate 7 is spread out, thereby avoiding the situation that the powder is accumulated together and cannot be spread out. Not only can it prevent the screen opening from being blocked, but also it can improve the screening efficiency.

[0025] The jacking device 2 includes two groups of support frames 21 fixedly installed on the upper support plate 7, a drive motor 22 fixedly installed on the upper support plate 7, a support column 23 rotatably installed between the two groups of support frames 21 and fixedly connected with the output end of the drive motor 22, a convex disc 24 fixedly installed on the support column 23, a fixed block 25 fixedly installed on the lower support plate 6 and corresponding in position to the convex disc 24, and a guide wheel 26 rotatably installed on the fixed block 25. When the aluminum oxide powder falls on the screening plate 31 on the upper support plate 7, the drive motor 22 is started to drive the convex disc 24 to rotate under the action of the support column 23. When the convex part on the convex disc 24 contacts the guide wheel 26, the convex disc 24 jacks up the upper support plate 7 to make the upper support plate 7 rotate. The accumulated aluminum oxide powder is spread on the screening plate 31 under the action of gravity, thereby avoiding the situation that the powder is accumulated to cause low screening efficiency.

[0026] In order to screen the alumina powder, the screening device 3 comprises a screening plate 31 slidingly installed in the upper support plate 7, and two groups of vibration motors 32 symmetrically fixedly installed on both sides of the upper support plate 7. A plurality of material falling inclined plates 33 are fixedly installed in the equipment shell 1 and located at the bottom of the material falling port 9, so that the alumina powder can fall between the sliding frame 44 and the screening plate 31. The lower support plate 6 is provided with a material falling port 9, and the top of the equipment shell 1 is provided with a material inlet 8. The alumina powder to be screened is poured into the equipment shell 1 through the material inlet 8 and falls on the screening plate 31. Under the action of the jacking device 2, the accumulated powder on the screening plate 31 is spread on the screening plate 31. The screening plate 31 is vibrated by the vibration motor 32 to accelerate the screening speed. The screened powder falls through the material falling inclined plate 33 to the next layer of screening device 3 for multi-layer screening.

[0027] Example two

[0028] On the basis of example one, the technical solution proposed in example one is used to solve the problem of low screening efficiency caused by powder accumulation. Since the powder is not accumulated, the situation of the screen being blocked can be reduced, but it cannot be completely avoided. Therefore, the screen needs to be cleaned in time.

[0029] Referring to Figures 1-5 The upper support plate 7 is provided with a cleaning device 4 for cleaning the screen. The cleaning device 4 comprises a support rod 41 fixedly installed on the upper support plate 7, a sliding frame 44 slidingly installed on the support rod 41, a connecting rod 42 fixedly installed at one end of the support column 23, a rotating rod 43 rotatably installed between the connecting rod 42 and the sliding frame 44, a T-shaped bracket 45 slidingly installed at the bottom of the sliding frame 44, and a plurality of bevel blocks 46 fixedly installed at the bottom of the T-shaped bracket 45. The bevel blocks 46 are inserted into the screen on the screening plate 31 to facilitate cleaning of the screen on the screening plate 31. The convex disc 24 rotates to drive the connecting rod 42 to rotate, the connecting rod 42 rotates to drive the rotating rod 43 to move, the rotating rod 43 drives the sliding frame 44 to move on the support rod 41, thereby driving the bevel blocks 46 on the T-shaped bracket 45 to move and cleaning the screen on the screening plate 31, avoiding the situation that the screen is blocked and affecting the screening efficiency.

[0030] In order to collect the screened alumina powder, the equipment shell 1 is provided with a collecting device 5. The collecting device 5 comprises a plurality of grooves 51 formed in the equipment shell 1, a fastening bolt 52 threadedly connected with the upper support plate 7 and installed on the screening plate 31, and a material falling box 53 slidingly installed in the equipment shell 1 for collecting the finally screened powder. When the powder is screened, the screening plate 31 is pulled out from the groove 51 under the action of the fastening bolt 52, so that the powder not passing through the screening on the screening plate 31 can be collected. The material falling box 53 is pulled out for collecting the finally screened powder.

[0031] It should be noted that, in this document, the terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not limited to those elements, but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses.

[0032] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer screening device for aluminum oxide powder, comprising a device housing (1), characterized in that: The inner wall of the device housing (1) is provided with a plurality of lower support plates (6), an upper support plate (7) is rotatably mounted on the lower support plates (6), a screening device (3) is mounted on the upper support plate (7), and a lifting device (2) for preventing the screen opening from being blocked is installed between the lower support plates (6) and the upper support plates (7); The lifting device (2) comprises two groups of support frames (21) fixedly mounted on an upper support plate (7), a driving motor (22) fixedly mounted on the upper support plate (7), a support column (23) fixedly connected to the output end of the driving motor (22) rotatably mounted between the two groups of support frames (21), a cam (24) fixedly mounted on the support column (23), a fixed block (25) corresponding to the position of the cam (24) fixedly mounted on the lower support plate (6), and a guide wheel (26) rotatably mounted on the fixed block (25).

2. The multi-layer screening device for aluminum oxide powder according to claim 1, characterized in that: The screening device (3) comprises a screening plate (31) slidably mounted in an upper support plate (7), two symmetrical sets of vibration motors (32) are fixedly mounted on both sides of the upper support plate (7), and a plurality of sets of blanking inclined plates (33) located at the bottom of the blanking port (9) are fixedly mounted in the device housing (1).

3. The multi-layer screening device for aluminum oxide powder according to claim 2, characterized in that: The lower support plate (6) is provided with a blanking opening (9).

4. The multi-layer screening device for aluminum oxide powder according to claim 3, characterized in that: A cleaning device (4) for cleaning the sieve opening is installed on the upper support plate (7), and the cleaning device (4) comprises a support rod (41) fixedly installed on the upper support plate (7), and a sliding frame (44) slidably installed on the support rod (41); a connecting rod (42) is fixedly installed on one end of the support column (23); a rotating rod (43) is rotatably installed between the connecting rod (42) and the sliding frame (44); a T-shaped frame (45) is slidably installed at the bottom of the sliding frame (44); and a plurality of bevel blocks (46) are fixedly installed at the bottom of the T-shaped frame (45).

5. The multi-layer screening device for aluminum oxide powder according to claim 4, characterized in that: A collecting device (5) is installed in the equipment housing (1), and the collecting device (5) includes a plurality of groups of slots (51) provided on the equipment housing (1). Fastening bolts (52) threadedly connected to the upper support plate (7) are installed on the screening plate (31), and a blanking box (53) is slidably installed in the equipment housing (1).

6. The multi-layer screening device for aluminum oxide powder according to claim 1, characterized in that: A feed port (8) is provided on the top of the equipment housing (1).

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