A circular vibrating screen for metal fine powder

Abstract

The present application relates to the technical field of vibrating screens, and in particular to a circular vibrating screen for metal fine powder, which comprises a vibrating screen housing and a plurality of screening nets arranged in the vibrating screen housing, wherein a mounting ring is arranged on the vibrating screen housing, and a material dividing assembly for dividing metal powder into different zones is arranged on the mounting ring; the material dividing assembly comprises a winding roller and an unwinding roller rotatably connected to the mounting ring, and a material dividing belt wound on the winding roller, and the end of the material dividing belt away from the winding roller is wound on the unwinding roller, and a material dividing plate is arranged on the mounting ring, and the length of the material dividing plate is less than the length of the material dividing belt, and the material dividing plate is arranged below the material dividing belt, and a first material dividing opening is provided on the material dividing belt, and a second material dividing opening is provided on the material dividing plate. The present application has the effect of reducing the clogging of the screening net.

Description

Technical Field

[0001] The present application relates to the technical field of vibrating screens, and in particular to a circular vibrating screen for fine metal powder. Background Art

[0002] Metal powder refers to a group of metal particles with a size of less than 1mm. It includes single metal powder, alloy powder and certain refractory compound powders with metallic properties. It is the main raw material for powder metallurgy. Metal powder is a loose substance, and its performance comprehensively reflects the properties of the metal itself, the shape of individual particles and the characteristics of the particle group. In actual use, the metal powder needs to be screened through a circular vibrating screen. The circular vibrating screen uses an upright motor as the excitation source. Eccentric weights are installed at the upper and lower ends of the motor to convert the motor's rotational motion into horizontal, vertical and inclined three-dimensional motion, and then transmit this motion to the screen surface to screen the material.

[0003] For example, a Chinese patent application document with publication number CN107899944A discloses a flanged vibrating screen, including a vibrating screen frame and a fixed frame, an upper end cover is installed at the upper end of the vibrating screen frame, a feed port is opened on the top of the upper end cover, a first screen and a second screen are arranged inside the vibrating screen frame, and the first screen is arranged directly above the second screen, a coarse material outlet is arranged on the side surface of one side of the vibrating screen frame at a horizontal position relative to the first screen, a medium material outlet is arranged on the other side surface of the vibrating screen frame at a horizontal position relative to the second screen, and a fine material outlet is arranged on the outer side surface of the vibrating screen frame directly below the coarse material outlet. The motor vibrates and causes the first and second screens to generate compound rotation vibrations through the upper and lower weights. Then the material to be screened is poured into the vibrating screen frame from the feed inlet. The coarse material filtered by the first screen is screened out from the coarse material outlet, and the remaining material passes through the first screen and falls onto the second screen. After screening by the second screen, the medium material is discharged from the medium material outlet, and the fine material passes through the second screen and falls into the bottom of the vibrating screen frame, and is finally discharged from the fine material outlet under the action of the vibration of the vibration motor.

[0004] In the above-mentioned related technology, since the feed port is set in the middle position of the upper cover, the material falls directly from the feed port to the middle position of the first screen, and then the small particle material directly passes through the first screen and falls onto the second screen during vibration. Since the material passes through the material in the feed port and falls directly onto the first screen, when the amount of material added is large, a part of the material will be stacked at the position corresponding to the first screen and the feed port, affecting the speed at which the material falls from the first screen to the second screen, thereby reducing the screening efficiency of the first screen. Summary of the invention

[0005] The present application provides a circular vibrating screen for metal fine powder, aiming to solve the problem of low screening efficiency of the first screen in the related art.

[0006] The circular vibrating screen for metal fine powder provided in this application adopts the following technical solution:

[0007] A circular vibrating screen for metal fine powder comprises a vibrating screen shell and a plurality of screening nets arranged in the vibrating screen shell, the vibrating screen shell is provided with a mounting ring, the mounting ring is provided with a dividing assembly for dividing the metal fine powder into zones; the dividing assembly comprises a winding roller and an unwinding roller rotatably connected to the mounting ring and a dividing belt wound on the winding roller, the dividing belt is wound on the unwinding roller at one end away from the winding roller, the mounting ring is provided with a dividing plate, the length of the dividing plate is less than the length of the dividing belt, the dividing plate is arranged below the dividing belt, the dividing belt is provided with a first dividing opening, and the dividing plate is provided with a second dividing opening.

[0008] By adopting the above technical scheme, the metal fine powder falls onto the dividing belt, and the unwinding roller and the winding roller are rotated at the same time. The dividing belt detached from the unwinding roller is wound on the winding roller. At this time, the dividing belt moves. Since the vibrating screen shell will drive the dividing belt to vibrate to a certain extent, a part of the metal fine powder falls onto the screening net through the first dividing port and the second dividing port. During the movement of the dividing belt, when the first dividing port and the second dividing port overlap, the material with the largest particles falls together with other materials. As the dividing belt moves, the first dividing port and the second dividing port are staggered. At this time, the overlapping part of the first dividing port and the second dividing port screens the metal fine powder, and then most of the materials with smaller particles will fall through the overlapping part of the first dividing port and the second dividing port. Other large particles of metal are moved by the dividing belt and the staggered setting of the dividing plate. At this time, large particles of metal fine powder only fall onto the screening net through the first dividing port, and finally the purpose of partitioning the metal fine powder that falls on the screening net is achieved. Then, screening through the screening net is more convenient and quick, and the occurrence of clogging of the screening net is reduced.

[0009] Optionally, a collecting hood is rotatably connected to the vibration screen shell, and the collecting hood is arranged above the material distribution belt, and the horizontal cross-section of the collecting hood gradually decreases in the direction close to the material distribution belt.

[0010] By adopting the above technical solution, the metal fine powder to be screened enters the collecting hood and then enters the dividing belt through the collecting hood. At this time, the metal fine powder can be better dropped onto the dividing belt.

[0011] Optionally, a driving assembly for driving the winding roller and the unwinding roller to rotate is provided on the mounting ring, and the driving assembly includes a mounting shaft passing through the winding roller, a vortex spring wound around the mounting shaft, and a driving motor fixed to the mounting ring, the mounting shaft is fixed to the mounting ring, one end of the vortex spring is fixed to the mounting shaft, and the other end is fixed to the winding roller, and the output shaft of the driving motor is fixedly connected to the unwinding roller.

[0012] By adopting the above technical solution, when screening metal fine powder, the driving motor drives the unwinding roller to rotate, and then the dividing belt wound on the unwinding roller is unfolded, and the winding roller, under the action of the spiral spring, winds the dividing belt on the winding roller, and drives the metal fine powder to move during the movement of the dividing belt, and then a part of the metal fine powder falls directly from the first dividing port onto the screening net under vibration.

[0013] Optionally, the first material distribution opening and the second material distribution opening are of the same size.

[0014] By adopting the above technical solution, since the first material distribution opening and the second material distribution opening are of the same size, when the first material distribution opening and the second material distribution opening overlap, the metal fine powder with the largest particles will fall together with other metal fine powders; when the first material distribution opening and the second material distribution opening are staggered, the overlapping part of the first material distribution opening and the second material distribution opening will screen the metal fine powder, and then most of the materials with smaller particles will fall through the overlapping part of the first material distribution opening and the second material distribution opening, which makes it more convenient for the metal fine powder to fall.

[0015] Optionally, a rotating assembly is provided on the mounting ring for driving the collecting cover to rotate on the mounting ring, and the rotating assembly includes a large gear ring fixed on the collecting cover and a gear rotatably connected to the mounting ring, and the gear is meshed with the large gear ring. A control assembly is provided on the mounting ring for driving the distribution plate to move.

[0016] By adopting the above technical solution, when the dividing strip on the unwinding roller is fully unfolded, the unwinding roller and the winding roller need to rotate in opposite directions. At this time, the rotating component drives the collecting cover to rotate 180 degrees, and then the control component drives the dividing plate to move, so that the metal fine powder can be screened when the unwinding roller and the winding roller rotate in opposite directions.

[0017] Optionally, the control assembly includes a mounting plate fixedly mounted on the dividing plate, a support shaft fixed on the mounting ring, a first connecting rod rotatably connected to the mounting plate, and a second connecting rod rotatably connected to the support shaft, wherein the first connecting rod is slidably connected to the second connecting rod.

[0018] Optionally, a support plate is fixedly mounted on the support shaft, a first connecting plate is provided on the support plate, the dividing strip is slidably connected to the first connecting plate, two pulling assemblies are provided on the mounting ring, the pulling assemblies are used to pull the two first connecting plates to rotate in opposite directions so that the dividing strip moves along its own width direction, the pulling assembly includes a pulling shaft rotating on the support plate and a pulling rod fixed on the pulling shaft, the axis of the pulling shaft is vertically arranged, and the side of the pulling rod abuts against the first connecting plate.

[0019] Optionally, a pushing assembly is provided on the mounting ring, and the pushing assembly includes a torsion spring sleeved on the pulling shaft, a mounting rod fixed on the pulling shaft, and a pushing rod slidably connected to the mounting ring, one end of the torsion spring is fixed on the pulling shaft, and the other end is fixed on the support plate, one end of the pushing rod extends out of the mounting ring, and the other end abuts against the mounting rod.

[0020] In summary, the present application includes the following beneficial technical effects:

[0021] When the first material distribution port and the second material distribution port overlap, the material with the largest particles falls together with other materials. As the distribution belt moves, the first material distribution port and the second material distribution port are offset. At this time, the overlapping part of the first material distribution port and the second material distribution port screens the metal fine powder, and then most of the materials with smaller particles will fall through the overlapping part of the first material distribution port and the second material distribution port. Other large particles of metal are moved by the distribution belt and the offset setting of the distribution plate. At this time, large particles of metal fine powder only fall onto the screening net through the first material distribution port, and finally the purpose of dividing the metal fine powder that falls on the screening net is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0023] Figure 2 It is a schematic diagram of the mounting ring and collection cover structure of Example 1 of the present application.

[0024] Figure 3 It is a schematic diagram of the structure of the material distribution component of Example 1 of the present application.

[0025] Figure 4 It is a schematic diagram of the structure of the dividing belt and dividing plate of Example 1 of the present application.

[0026] Figure 5 It is a schematic diagram of the structure of the drive component of Example 1 of the present application.

[0027] Figure 6 yes Figure 4 Enlarged view of point A in the middle.

[0028] Figure 7 It is a schematic diagram of the pulling component structure of the second embodiment of the present application.

[0029] Figure 8 This is a schematic diagram of the first connecting plate and the pull rod structure of the second embodiment of the present application.

[0030] Fig. 9 It is a schematic diagram of the structure of the pushing component of the second embodiment of the present application.

[0031] : Illustration symbols: 01, vibrating screen shell; 02, upper cover; 03, feed port; 1, mounting ring; 11, collecting cover; 12, dividing plate; 13, first dividing port; 14, second dividing port; 15, rotating ring; 16, baffle; 2, dividing assembly; 21, winding roller; 22, unwinding roller; 23, dividing belt; 24, supporting roller; 3, driving assembly; 31, mounting shaft; 32, volute spring; 4, rotating assembly; 41, large ring gear; 42, gear; 5, control assembly; 51, mounting plate; 52, supporting shaft; 53, first connecting rod; 54, second connecting rod; 6, pulling assembly; 61, pulling shaft; 62, pulling rod; 7, pushing assembly; 71, torsion spring; 72, mounting rod; 73, pushing rod; 8, support plate; 9, first connecting plate. DETAILED DESCRIPTION

[0032] The following combination Figure 1-Figure 9 This application is described in further detail.

[0033] Embodiment 1:

[0034] The present application discloses a circular vibrating screen for fine metal powder. Figure 1 and Figure 2 A circular vibrating screen for metal fine powder comprises a vibrating screen shell 01 and a plurality of screening nets arranged in the vibrating screen shell 01, the mesh size of each screening net is different, and the mesh diameter of the top screening net is the largest; an upper cover 02 is arranged on the vibrating screen shell 01, and a feed port 03 is opened on the upper cover 02, and the metal fine powder directly enters the vibrating screen shell 01 through the feed port 03, and then is vibrated by the vibrating screen shell 01. Under the action of the plurality of screening nets, the metal fine powder entering the vibrating screen shell 01 is screened, and the screened metal fine powder is discharged from discharge ports at different positions.

[0035] Reference Figures 1 to 3 A mounting ring 1 is provided on the vibrating screen housing 01. The mounting ring 1 is provided below the upper cover 02, and a material dividing assembly 2 is provided inside the mounting ring 1. The material dividing assembly 2 is used to divide the metal fine powder that falls before the first layer of screening net, and then facilitate the first layer of screening net to screen the metal fine powder. A collecting hood 11 is rotatably connected to the mounting ring 1. The collecting hood 11 is used to collect the metal fine powder that enters the upper cover 02. The opening at one end of the collecting hood 11 is the same as the opening of the upper cover 02, and the opening at the other end is smaller than the opening of the upper cover 02, so that the cross-section of the collecting hood 11 in the horizontal direction gradually becomes smaller in the direction close to the material dividing assembly 2, and finally facilitates the metal fine powder to fall directly onto the material dividing assembly 2. In this embodiment, the opening at the lower end of the collecting hood 11 and the mounting ring 1 are not coaxially arranged.

[0036] Reference Figures 1 to 4The material dividing assembly 2 includes a winding roller 21, an unwinding roller 22, and a material dividing belt 23 wound on the winding roller 21, one end of the material dividing belt 23 is fixed on the winding roller 21, and the other end is fixed on the unwinding roller 22. There are two supporting rollers 24 rotatably connected to the mounting ring 1. The material dividing belt 23 abuts against the two supporting rollers 24. Under the action of the two supporting rollers 24, the material dividing belt 23 between the two supporting rollers 24 can be in a horizontal state; a material dividing plate 12 is slidably connected to the mounting ring 1. The dividing plate 12 is arranged below the horizontal dividing belt 23. At the same time, the dividing plate 12 corresponds to the opening at the lower end of the collecting cover 11, and the length of the dividing plate 12 is smaller than the length of the horizontal dividing belt 23. In addition, a plurality of first dividing openings 13 are opened on the dividing belt 23, and a second dividing opening 14 is opened on the dividing plate 12. The areas of the first dividing openings 13 and the second dividing openings 14 are the same, and in the initial position, the first dividing openings 13 and the second dividing openings 14 correspond. At this time, the dividing belt 23 is completely wound around the unwinding roller 22.

[0037] Reference Figures 1 to 4 When screening the metal fine powder, the metal fine powder is first added into the upper cover 02 through the feed port 03, enters into the collecting cover 11 through the upper cover 02, and then falls onto the dividing belt 23 through the opening at the lower end of the collecting cover 11. At this time, the unwinding roller 22 and the winding roller 21 are rotated, and the dividing belt 23 on the unwinding roller 22 will gradually be wound around the winding roller 21. In the process of the movement of the dividing belt 23, the overlapping area of ​​the first dividing port 13 and the second dividing port 14 will gradually change from the maximum to the minimum, and finally from the minimum to the maximum. When the overlapping area of ​​the first dividing port 13 and the second dividing port 14 changes, the metal fine powder falling on the dividing belt 23 can be screened while the vibrating screen shell 01 vibrates, so that a part of the material of the dividing belt 23 passes through the first dividing port 13 and the second dividing port 14 and falls onto the first layer of the screening net. At the same time, since the dividing belt 23 is moving, a part of the metal fine powder can be driven to be misaligned with the dividing plate 12. At this time, the metal fine powder misaligned with the dividing plate 12 falls directly from the first dividing port 13 to the first layer of the screening net, and finally the metal fine powder falling onto the first layer of the screening net is The metal fine powder will be divided into zones, with the majority of the smaller metal fine powder particles falling below the dividing plate 12, among which a few larger metal fine powder particles will be mixed. In the area misaligned with the dividing plate 12, the majority of the larger metal fine powder particles fall, among which a few smaller metal fine powder particles will also be mixed. At this time, the metal fine powder falling on the first layer of screening mesh will be initially divided into zones, and then when screened by the first layer of screening mesh, the smaller metal fine powder particles will easily fall onto the second layer of screening mesh, and the larger metal fine powder particles will be directly discharged through the topmost discharge port after screening, and finally the metal fine powder will continue to be screened through the second layer of screening mesh, making screening by the screening mesh more convenient and quick, and reducing the occurrence of clogging of the screening mesh.

[0038] Reference Figures 1 to 5 A driving assembly 3 is arranged on the mounting ring 1, and the driving assembly 3 includes a mounting shaft 31 fixed on the mounting ring 1 and a volute spring 32 fixed on the mounting shaft 31. The mounting shaft 31 is passed through the winding roller 21, and one end of the volute spring 32 is fixed on the mounting shaft 31, and the other end is fixed on the winding roller 21. In addition, a driving motor is arranged on the mounting ring 1, and the output shaft of the driving motor is fixedly connected to the unwinding roller 22. In the initial state, the volute spring 32 is in an energized state. When the strip 2 needs to be divided, the volute spring 32 is in an energized state. When the vibrating screen housing 01 moves, the driving motor drives the unwinding roller 22 to rotate. During the rotation of the unwinding roller 22, the dividing belt 23 wound on the unwinding roller 22 is unfolded, and then under the action of the spiral spring 32, the unfolded dividing belt 23 is wound onto the winding roller 21, thereby achieving the purpose of driving the dividing belt 23 to move. Since the vibrating screen housing 01 vibrates during use, the vibration of the vibrating screen housing 01 will drive the dividing belt 23 and the dividing plate 12 to vibrate at the same time, thereby improving the screening efficiency of fine metal powder.

[0039] Reference Figures 1 to 5 A rotating ring 15 is provided on the mounting ring 1, and the rotating ring 15 is rotatably connected to the mounting ring 1. The collecting cover 11 is fixed on the rotating ring 15, and a rotating component 4 is provided on the mounting ring 1. The rotating component 4 is used to drive the rotating ring 15 to rotate. At the same time, a control component 5 is provided on the mounting ring 1, and the control component 5 is used to drive the dividing plate 12 to move. When the dividing belt 23 on the unwinding roller 22 is fully unfolded, the dividing belt 23 is wound onto the winding roller 21. At this time, the winding roller 21 and the unwinding roller 22 need to rotate in opposite directions, and then the rotating component 4 drives the collecting cover 11 to rotate 180 degrees, and the control component 5 drives the dividing plate 12 to move, so that the moving dividing plate 12 is below the opening at the lower end of the collecting cover 11, and then the metal fine powder falling from the opening at the lower end of the collecting cover 11 falls directly onto the dividing belt 23, and then falls onto the first layer of the screening net through the first dividing port 13 on the dividing belt 23 and the second dividing port 14 on the dividing plate 12.

[0040] Reference Figures 1 to 5 The rotating assembly 4 includes a large gear ring 41 fixedly mounted on the rotating ring 15 and a gear 42 rotatably connected to the mounting ring 1. The gear 42 is meshed with the large gear ring 41. A motor is provided on the mounting ring 1. The output shaft of the motor is fixedly connected to the gear 42. The motor drives the gear 42 to rotate. When the gear 42 rotates, it drives the large gear ring 41 to rotate, and then the rotating ring 15 and the collecting cover 11 are driven to rotate through the large gear ring 41.

[0041] Reference Figures 1 to 6The control component 5 includes a mounting plate 51 fixedly mounted on the bottom of the dividing plate 12, a support shaft 52 fixed on the mounting ring 1, a first connecting rod 53 rotatably connected to the mounting plate 51, and a second connecting rod 54 rotatably connected to the support shaft 52. The first connecting rod 53 is inserted into the second connecting rod 54, and the first connecting rod 53 is slidably connected to the second connecting rod 54. By rotating the second connecting rod 54, the second connecting rod 54 drives the first connecting rod 53 to rotate. While the first connecting rod 53 rotates, it drives the mounting plate 51 to slide, and the first connecting rod 53 slides on the second connecting rod 54, thereby achieving the purpose of adjusting the position of the dividing plate 12. In this embodiment, two groups of control components 5 are arranged, and the two groups of control components 5 are symmetrically arranged on the bottom surface of the dividing plate 12. At the same time, two baffles 16 are arranged on the mounting ring 1, and the dividing belt 23 is arranged between the two baffles 16. When the metal fine powder falls from the opening at the lower end of the collecting cover 11, the metal fine powder can be reduced from escaping from the dividing belt 23. In this embodiment, a driving shaft is passed through the support shaft 52, and one end of the driving shaft extends out of the vibrating screen shell 01. The driving shaft is rotatably connected to the support shaft 52, and the driving shaft and the second connecting rod 54 are fixed.

[0042] The implementation principle of a circular vibrating screen for metal fine powder in an embodiment of the present application is as follows: when screening the metal fine powder, the metal fine powder is first added into the upper cover 02 through the feed inlet 03, enters into the collecting cover 11 through the upper cover 02, and then falls onto the dividing belt 23 through the opening at the lower end of the collecting cover 11. At this time, the unwinding roller 22 and the winding roller 21 are rotated, and the dividing belt 23 on the unwinding roller 22 will gradually be wound around the winding roller 21.

[0043] In the process of the distribution belt 23 moving, the overlapping area of ​​the first distribution port 13 and the second distribution port 14 will gradually change from the maximum to the minimum, and finally from the minimum to the maximum. When the overlapping area of ​​the first distribution port 13 and the second distribution port 14 changes, the metal fine powder falling on the distribution belt 23 can be screened while the vibration screen shell 01 vibrates, so that a part of the material of the distribution belt 23 passes through the first distribution port 13 and the second distribution port 14 and falls onto the first layer of screening net. At the same time, since the distribution belt 23 is moving, a part of the metal fine powder can be driven to be misaligned with the distribution plate 12. At this time, the metal fine powder misaligned with the distribution plate 12 falls directly from the first distribution port 13 to the distribution plate 12. On the first layer of screening net, the metal fine powder that falls on the first layer of screening net will be divided into zones, with the majority being the smaller metal fine powder particles below the dividing plate 12, and the majority being the larger metal fine powder particles that fall offset from the dividing plate 12. At this time, the metal fine powder that falls on the first layer of screening net will be initially divided into zones, and then when screened by the first layer of screening net, the smaller metal fine powder particles will easily fall onto the second layer of screening net, and the larger metal fine powder particles will be directly discharged through the topmost discharge port after screening, and finally the metal fine powder will continue to be screened through the second layer of screening net, making screening by the screening net more convenient and quick, and reducing the occurrence of blockage of the screening net.

[0044] Embodiment 2:

[0045] The difference from the first embodiment is that the size of the first dividing opening 13 on the dividing belt 23 can be adjusted so that metal fine powders of different sizes can be divided into zones along the moving direction of the dividing belt 23 .

[0046] Reference Figure 7-Figure 9 Two pulling components 6 are arranged on the mounting ring 1. The pulling components 6 are used to pull the material dividing belt 23 which is staggered with the material dividing plate 12 to move along its width direction. At this time, the area of ​​the first material dividing opening 13 on the material dividing belt 23 gradually increases along the length direction of the material dividing plate 12. Then, during the movement of the material dividing belt 23, since the opening area of ​​the first material dividing opening 13 gradually increases, on the one hand, it is convenient for the metal fine powder to fall during screening, and on the other hand, it is convenient for the metal fine powder of different sizes to be divided and arranged along the moving direction of the material dividing belt 23, and then it is convenient for the first layer of screening net to screen the material. In this embodiment, the material dividing belt 23 is set to be made of elastic rubber material.

[0047] Reference Figure 7-Figure 9 A support plate 8 is fixedly mounted on the support shaft 52, and a first connecting plate 9 is rotatably connected to the support plate 8, and the first connecting plate 9 is arranged below the dividing belt 23, and the dividing belt 23 is slidably connected to the first connecting plate 9. The pulling assembly 6 is used to pull the first connecting plate 9 to rotate. During the rotation, the dividing belt 23 will be stretched to both sides, so that the first dividing port 13 will gradually become larger in the direction away from the dividing plate 12. The pulling assembly 6 includes a pulling shaft 61 rotating on the support plate 8 and a pulling rod 62 fixed on the pulling shaft 61. The axis of the pulling shaft 61 is vertically arranged, and the side of the pulling rod 62 abuts against the first connecting plate 9. When the pulling rod 62 rotates, it pushes the first connecting plate 9 to rotate, thereby achieving the purpose of stretching the dividing belt 23. Combined with Figure 2 and Figure 3 In this embodiment, two first connecting plates 9 are provided, and both first connecting plates 9 are rotatably connected to the support plate 8. When the collecting cover 11 does not rotate, the rotation of the pull rod 62 will push the first connecting plate 9 away from the collecting cover 11 to rotate. After the collecting cover 11 rotates 180 degrees, the pull rod 62 is rotated in the opposite direction, and the pull rod 62 will push the other first connecting plate 9 to rotate.

[0048] Reference Figure 7-Figure 9The push assembly 7 is provided on the mounting ring 1. The push assembly 7 includes a torsion spring 71 sleeved on the pulling shaft 61, a mounting rod 72 fixed on the pulling shaft 61, and a pushing rod 73 slidably connected to the mounting ring 1. One end of the torsion spring 71 is fixed on the pulling shaft 61, and the other end is fixed on the supporting plate 8. One end of the pushing rod 73 extends out of the mounting ring 1, and the other end abuts against the mounting rod 72. Then, when the pushing rod 73 moves, it will push the mounting rod 72 to rotate. When the mounting rod 72 rotates, it will drive the pulling shaft 61 to rotate, thereby driving the pulling rod 62 to rotate. At this time, the torsion spring 71 is in an energized state. Then, when the pushing rod 73 moves in the opposite direction, the torsion spring 71 will drive the pulling shaft 61 to rotate in the opposite direction, so that the pulling rod 62 is reset. In this embodiment, two first connecting plates 9 are provided, and the two first connecting plates 9 are both rotatably connected to the supporting plate 8. After the dividing plate 12 moves, the pulling shaft 61 drives the other first connecting plate 9 to rotate.

[0049] Reference Figure 7-Figure 9 A rotating wheel is rotatably connected to one end of the pushing rod 73 close to the mounting rod 72, and the rotating wheel abuts against the mounting rod 72. Therefore, when the pushing rod 73 pushes the mounting rod 72 to move, the friction between the pushing rod 73 and the mounting rod 72 can be reduced. In this embodiment, two pushing components 7 are provided, and the two pushing components 7 are connected to the driving cylinder. Through the movement of the driving cylinder, the two pushing rods 73 are driven to move simultaneously.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A circular vibrating screen for fine metal powder, comprising a vibrating screen housing and a plurality of screening nets arranged in the vibrating screen housing, characterized in that: The vibrating screen shell is provided with a mounting ring, and a material dividing assembly for dividing the metal fine powder is provided on the mounting ring; the material dividing assembly comprises a winding roller and an unwinding roller rotatably connected to the mounting ring, and a material dividing belt wound on the winding roller, and the end of the material dividing belt away from the winding roller is wound on the unwinding roller, and a material dividing plate is provided on the mounting ring, the length of the material dividing plate is less than the length of the material dividing belt, and the material dividing plate is arranged below the material dividing belt, a first material dividing opening is provided on the material dividing belt, and a second material dividing opening is provided on the material dividing plate; A collecting hood is rotatably connected to the vibrating screen housing, the collecting hood is arranged above the material distribution belt, and the cross section of the collecting hood in the horizontal direction gradually decreases in the direction close to the material distribution belt; The mounting ring is provided with a rotating assembly for driving the collecting cover to rotate on the mounting ring. The rotating assembly includes a large gear ring fixed on the collecting cover and a gear rotatably connected to the mounting ring. The gear is meshed with the large gear ring. The mounting ring is provided with a control assembly for driving the dividing plate to move.

2. A circular vibrating screen for metal fine powder according to claim 1, characterized in that: The mounting ring is provided with a driving assembly for driving the winding roller and the unwinding roller to rotate, and the driving assembly includes a mounting shaft passing through the winding roller, a volute spring wound around the mounting shaft, and a driving motor fixed to the mounting ring, the mounting shaft is fixed to the mounting ring, one end of the volute spring is fixed to the mounting shaft, and the other end is fixed to the winding roller, and the output shaft of the driving motor is fixedly connected to the unwinding roller.

3. A circular vibrating screen for metal fine powder according to claim 2, characterized in that: The first material distribution opening and the second material distribution opening have the same size.

4. A circular vibrating screen for metal fine powder according to claim 3, characterized in that: The control assembly includes a mounting plate fixedly mounted on the material dividing plate, a supporting shaft fixed on the mounting ring, a first connecting rod rotatably connected to the mounting plate, and a second connecting rod rotatably connected to the supporting shaft, wherein the first connecting rod is slidably connected to the second connecting rod.

5. A circular vibrating screen for metal fine powder according to claim 4, characterized in that: A support plate is fixedly mounted on the support shaft, a first connecting plate is arranged on the support plate, the dividing strip is slidably connected to the first connecting plate, two pulling assemblies are arranged on the mounting ring, the pulling assemblies are used to pull the two first connecting plates to rotate in opposite directions so that the dividing strip moves along its own width direction, the pulling assembly includes a pulling shaft rotating on the support plate and a pulling rod fixed on the pulling shaft, the axis of the pulling shaft is vertically arranged, and the side surface of the pulling rod abuts against the first connecting plate.

6. A circular vibrating screen for metal fine powder according to claim 5, characterized in that: The mounting ring is provided with a pushing assembly, which includes a torsion spring sleeved on the pulling shaft, a mounting rod fixed on the pulling shaft, and a pushing rod slidably connected to the mounting ring. One end of the torsion spring is fixed on the pulling shaft, and the other end is fixed on the support plate. One end of the pushing rod extends out of the mounting ring, and the other end abuts against the mounting rod.

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