Powder winnowing and grading device

Abstract

The utility model discloses a powder winnowing grading device which comprises a base, the top of the base is fixedly connected with a first supporting frame, a second supporting frame and a third supporting frame in sequence, the top of the first supporting frame is fixedly connected with a winnowing machine body, and the top of the winnowing machine body is fixedly connected with a guide rod. A threaded block is slidably connected to the outer wall of the guide rod, two spiral heads are rotatably connected to the bottom of the threaded block, and a driving assembly capable of rotating the spiral heads is arranged on the threaded block. The grinding box, the feeding barrel, the feeding assembly, the rotating assembly and other structures are matched for use, so that large powder can be subjected to secondary grinding treatment through the grinding rollers, the powder is fed again through the auger blades, then the powder can be retreated, the steps of manual carrying and refeeding are reduced, the production efficiency is improved, and the production cost is reduced. Therefore, the labor intensity of workers is reduced, the operation convenience is improved, and the production efficiency is also improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a winnowing device technical field especially relates to a powder wind election grading device. BACKGROUND

[0002] With the development of industrialization, the demand for powder materials is increasing. Traditional powder processing methods, such as screening and sedimentation, have low efficiency and poor precision, so the research and application of more efficient classification technology are promoted. The basic principle of powder air classification is to use the difference between the buoyancy of the airflow and the gravity of the particles to suspend the powder material by airflow, so as to realize the classification of particles. Light fine particles are carried away in the airflow, while heavy coarse particles sink. With the continuous development and improvement of technology, powder air classification device plays an important role in modern industry, improving production efficiency and product quality.

[0003] The powder air classification device on the market needs to pour the powder into the feed inlet of the air classification device during the powder screening process. However, long-term use may cause clogging of the powder in the feed inlet, making feeding difficult and reducing the air classification speed, which is not conducive to the subsequent air classification. In general air classification, heavy powder needs to be screened out for secondary grinding treatment, and then re-entered into the air classification device to obtain finer and lighter powder. The general air classification device does not have the function of directly grinding the heavy powder and re-entering it into the air classification device for screening, which increases the labor intensity of the workers and is not convenient.

[0004] Therefore, a powder air classification device is proposed to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a powder air classification device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a powder air classification device, comprising a base, the top of the base is sequentially fixedly connected with a first support frame, a second support frame and a third support frame, the top of the first support frame is fixedly connected with an air classifier body, the top of the air classifier body is fixedly connected with a guide rod, the outer wall of the guide rod is slidably connected with a threaded block, the bottom of the threaded block is rotatably connected with two screw heads, the threaded block is provided with a driving assembly capable of rotating the screw head, the inside of the air classifier body is fixedly installed with a driving motor one, the output end of the driving motor one is fixedly connected with an impeller, the top of the second support frame is fixedly connected with a grinding box, the inside of the grinding box is rotatably connected with two grinding rollers, one side of the grinding box is provided with a rotating assembly capable of rotating the grinding roller, the third support frame is provided with a feeding assembly.

[0007] As a further description of the above technical solutions:

[0008] The driving assembly comprises a driving motor two fixedly installed at the top of the threaded block, an output end of the driving motor two penetrates through the threaded block and is fixedly connected with a gear set one, an outer wall of the gear set one is engagedly connected with a toothed belt one, and the gear set one is fixedly connected with the screw head.

[0009] As a further description of the above technical solutions:

[0010] One end of the threaded block is threadedly connected with a threaded rod, the threaded rod is rotationally connected with the winnower body, and the top of the threaded rod is fixedly connected with a rotating plate.

[0011] As a further description of the above technical solutions:

[0012] The feeding assembly comprises a feeding cylinder fixedly installed at the top of the third supporting frame, a driving motor three is fixedly installed at the bottom of the feeding cylinder, an output end of the driving motor three is fixedly connected with an auger blade, and the auger blade rotates on the inner wall of the feeding cylinder.

[0013] As a further description of the above technical solutions:

[0014] The rotating assembly comprises a gear set shell fixedly installed at one side of the grinding box, a driving motor four is fixedly installed at one side of the gear set shell, an output end of the driving motor four is fixedly connected with a gear set two, an outer wall of the gear set two is engagedly connected with a toothed belt two, and the gear set two is fixedly connected with the grinding roller.

[0015] As a further description of the above technical solutions:

[0016] The bottom of the grinding box is provided with a collecting box, and the collecting box can collect the powder that does not need to be subjected to secondary crushing treatment.

[0017] As a further description of the above technical solutions:

[0018] The top of the winnower body is also fixedly connected with a feeding inlet, the bottom of the winnower body is fixedly connected with a discharging outlet, and the bottom center of the winnower body is fixedly connected with a distributing outlet.

[0019] The utility model has the advantages of the following beneficial effects:

[0020] 1、Compared with the prior art, the powder air classification device can perform secondary grinding treatment on the larger powder through the cooperation of the grinding box, the feeding barrel, the feeding assembly and the rotating assembly, and can realize reprocessing of the powder through the re-feeding of the powder by the auger blade, thereby reducing the steps of manual carrying and re-feeding, reducing the labor intensity of the workers, improving the operation convenience, improving the production efficiency, reducing the need for manual carrying of heavy objects, reducing the safety hazards caused by accidents in the carrying process, and improving the operation safety.

[0021] 2、Compared with the prior art, the powder air classification device can quickly adjust the position of the threaded block through the cooperation of the guide rod, the threaded block, the threaded head and the driving assembly, thereby dispersing and crushing the powder blocked in the feeding port, quickly cleaning the blocked feeding port, ensuring the smoothness of the feeding port, reducing the influence of the blocking problem on the operation of the equipment, enhancing the stability and reliability of the device, and avoiding the speed reduction of the powder air classification caused by blocking. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A structure perspective view of a powder air classification device is provided.

[0023] Figure 2 A structure perspective view of a powder air classification device is provided.

[0024] Figure 3 A structure perspective view of a powder air classification device is provided.

[0025] Figure 4 A structure perspective view of a powder air classification device is provided.

[0026] LEGEND:

[0027] 1, base; 2, first support frame; 3, second support frame; 4, third support frame; 5, air classifier body; 6, guide rod; 7, threaded block; 8, screw head; 9, driving motor one; 10, impeller; 11, grinding box; 12, grinding roller; 13, driving motor two; 14, gear set one; 15, toothed belt one; 16, threaded rod; 17, rotating plate; 18, feeding barrel; 19, driving motor three; 20, auger blade; 21, gear set housing; 22, driving motor four; 23, gear set two; 24, toothed belt two; 25, collection box; 26, feeding port; 27, discharging port; 28, distribution port. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] With reference to Figures 1-4 The utility model provides a kind of powder air separation grading device: including base 1, the top of base 1 is sequentially fixedly connected with first support frame 2, second support frame 3 and third support frame 4, the top of first support frame 2 is fixedly connected with air separator body 5, the top of air separator body 5 is fixedly connected with guide rod 6, the outer wall of guide rod 6 is slidably connected with screw block 7, two screw heads 8 are rotatably connected to the bottom of screw block 7, driving assembly that can be rotated screw head 8 is arranged on screw block 7, driving motor one 9 is fixedly installed in the inside of air separator body 5, the output end of driving motor one 9 is fixedly connected with impeller 10, the top of second support frame 3 is fixedly connected with mill box 11, two mill rollers 12 are rotatably connected in the inside of mill box 11, rotating assembly that can be rotated mill roller 12 is arranged on the side of mill box 11, feeding assembly is arranged on third support frame 4, by the cooperation of the use of mill box 11, feeding cylinder 18, feeding assembly and rotating assembly etc., mill roller 12 can be carried out secondary mill processing to larger powder, and powder is re-fed by auger blade 20, to realize the reprocessing of powder, reduce the steps of manual handling and re-feeding, thereby reduce the labor intensity of staff, improve the convenience of operation, also improve production efficiency, reduce the demand of manual handling heavy object, thereby reduce the security risk caused by accident in the process of handling, improve the operation safety.

[0030] Driving assembly includes driving motor two 13 fixedly installed on the top of screw block 7, the output end of driving motor two 13 penetrates screw block 7 and is fixedly connected with gear set one 14, gear set one 14 is meshingly connected with toothed belt one 15 on the outer wall, gear set one 14 and screw head 8 are fixedly connected, one end of screw block 7 is screw-connected with threaded rod 16, threaded rod 16 is rotatably connected with air separator body 5, the top of threaded rod 16 is fixedly connected with rotating plate 17.

[0031] The feeding assembly comprises a feeding cylinder 18 fixedly installed at the top of the third support frame 4, the bottom of the feeding cylinder 18 is fixedly installed with a driving motor three 19, the output end of the driving motor three 19 is fixedly connected with an auger blade 20, the auger blade 20 rotates on the inner wall of the feeding cylinder 18, the rotating assembly comprises a gear set shell 21 fixedly installed at one side of the grinding box 11, one side of the gear set shell 21 is fixedly installed with a driving motor four 22, the output end of the driving motor four 22 is fixedly connected with a gear set two 23, the outer wall of the gear set two 23 is meshedly connected with a toothed belt two 24, the gear set two 23 is fixedly connected with the grinding roller 12, the top of the grinding box 11 is provided with a collecting box 25, the collecting box 25 can collect the powder which does not need to be processed by secondary crushing, the top of the winnower body 5 is further fixedly connected with a feeding inlet 26, the bottom of the winnower body 5 is fixedly connected with a discharging outlet 27, and the bottom center of the winnower body 5 is fixedly connected with a distribution outlet 28.

[0032] Working principle: first, prepare the powder to be winnowed, pour it into the feeding inlet 26, then start the driving motor one 9, the output end drives the impeller 10 to rotate, so as to generate wind force, thereby facilitating the winnowing of the powder, the powder which is lighter is blown to the discharging outlet 27, and the powder which is larger in size falls into the distribution outlet 28 under the action of gravity, at this time, if secondary grinding is not needed, the powder enters the collecting box 25 through the inlet at the bottom of the grinding box 11, so as to facilitate the collection of the powder by the workers, if secondary grinding is needed, the inlet at the bottom of the grinding box 11 is closed, and the driving motor four 22 is started, the output end drives the gear set two 23 and the toothed belt two 24 to move, thereby synchronously driving the two grinding rollers 12 to rotate, the grinding wheel rotates to one side of the distribution outlet 28, thereby facilitating feeding, the powder after grinding treatment enters the feeding cylinder 18, then the driving motor three 19 is started, the output end drives the auger blade 20 to rotate, thereby conveying the powder along the feeding cylinder 18 to the feeding inlet 26, thereby enabling the device to perform secondary screening on the powder, by realizing the reprocessing of the powder, the steps of manual carrying and re-feeding are reduced, thereby reducing the labor intensity of the workers, improving the operation convenience, improving the production efficiency, reducing the need for manual carrying of heavy objects, thereby reducing the safety hidden danger caused by accidents in the carrying process, improving the operation safety;

[0033] After a long time of operation, the feeding port of the device is prone to be blocked, at this time, the rotating plate 17 is twisted to rotate the threaded rod 16, thereby driving the threaded block 7 to move along the guide rod 6, after the threaded block 7 is moved to a proper position, the second driving motor 13 is started to drive the gear set one 14 and the toothed belt one 15 to rotate, thereby synchronously driving the spiral head 8 to rotate, so that the spiral head 8 can disperse and break the blocked powder, and the blocked feeding port 26 is quickly cleaned, thereby ensuring the smoothness of the feeding port, reducing the influence of the blocking problem on the operation of the equipment, enhancing the stability and reliability of the device, and avoiding the speed reduction of the powder air selection caused by the blocking.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement of some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A powder air classification device comprising a base (1), characterised in that: The top of the base (1) is sequentially fixedly connected with a first support frame (2), a second support frame (3) and a third support frame (4), the top of the first support frame (2) is fixedly connected with a winnower body (5), the top of the winnower body (5) is fixedly connected with a guide rod (6), the outer wall of the guide rod (6) is slidably connected with a threaded block (7), the bottom of the threaded block (7) is rotatably connected with two screw heads (8), the threaded block (7) is provided with a driving assembly capable of rotating the screw heads (8), the inside of the winnower body (5) is fixedly installed with a driving motor one (9), the output end of the driving motor one (9) is fixedly connected with an impeller (10), the top of the second support frame (3) is fixedly connected with a grinding box (11), the inside of the grinding box (11) is rotatably connected with two grinding rollers (12), one side of the grinding box (11) is provided with a rotating assembly capable of rotating the grinding rollers (12), the third support frame (4) is provided with a feeding assembly.

2. A powder air-classifier according to claim 1, wherein: The driving assembly comprises a driving motor two (13) fixedly installed at the top of the threaded block (7), the output end of the driving motor two (13) penetrates through the threaded block (7) and is fixedly connected with a gear set one (14), the outer wall of the gear set one (14) is meshedly connected with a toothed belt one (15), and the gear set one (14) and the screw head (8) are fixedly connected.

3. A powder air-classifier apparatus according to claim 2, wherein: One end of the threaded block (7) is threadedly connected with a threaded rod (16), the threaded rod (16) is rotatably connected with the winnower body (5), and the top of the threaded rod (16) is fixedly connected with a rotating plate (17).

4. A powder air-classifier according to claim 1, wherein: The feeding assembly comprises a feeding cylinder (18) fixedly installed at the top of the third support frame (4), the bottom of the feeding cylinder (18) is fixedly installed with a driving motor three (19), the output end of the driving motor three (19) is fixedly connected with an auger blade (20), and the auger blade (20) rotates on the inner wall of the feeding cylinder (18).

5. A powder air-classifier according to claim 1, wherein: The rotating assembly comprises a gear set shell (21) fixedly installed at one side of the grinding box (11), one side of the gear set shell (21) is fixedly installed with a driving motor four (22), the output end of the driving motor four (22) is fixedly connected with a gear set two (23), the outer wall of the gear set two (23) is meshedly connected with a toothed belt two (24), and the gear set two (23) is fixedly connected with the grinding roller (12).

6. A powder air-classifier according to claim 1, wherein: The bottom of the grinding box (11) is provided with a collecting box (25).

7. A powder air-classifier according to claim 1, wherein: The top of the winnower body (5) is also fixedly connected with a feeding inlet (26), the bottom of the winnower body (5) is fixedly connected with a discharging outlet (27), and the bottom center of the winnower body (5) is fixedly connected with a distributing outlet (28).

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