Alloy powder multi-stage screening device

Abstract

The utility model discloses a multistage screening device for alloy powder, which relates to the technical field of screening equipment and comprises a shell, a partition plate is vertically arranged in the shell and divides the interior of the shell into a screening cavity and an adjusting cavity, a plurality of through holes are formed in the partition plate, a plurality of pairs of connecting blocks are arranged on the inner wall, away from the partition plate, of the shell, and a plurality of through holes are formed in the connecting blocks. A plurality of rotating plates are rotationally arranged on the multiple pairs of connecting blocks, the end, away from the corresponding connecting block, of each rotating plate penetrates into the corresponding through hole and extends into the corresponding adjusting cavity, and a filter screen is arranged on each rotating plate; during screening, the inserting plate blocks the discharging port in the shell, so that powder on the screen has enough retention time to improve the screening effect, when the powder is discharged outwards, the inserting plate is opened, the telescopic end of the electric telescopic rod shrinks to enable the filter screen to shake in an inclined state, and then materials are discharged from the discharging port.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to a multi-stage screening device for alloy powder. Background Art

[0002] Alloy powder is a metal powder formed by partially or completely alloying two or more components. Alloy powders are classified by composition into ferroalloy powder, copper alloy powder, nickel alloy powder, cobalt alloy powder, aluminum alloy powder, titanium alloy powder, and precious metal alloy powder.

[0003] For example, the utility model patent with announcement number CN210333346U discloses a nickel-based alloy powder screening device, which drives the first-level filter device and the second-level filter device to vibrate through an exciter, so that the alloy powder that does not fall downward is discharged from the discharge port on the screening box, which is located on the lower end side of the first-level filter device and the second-level filter device, to achieve a multi-stage screening function.

[0004] However, when the utility model is in use, the alloy powder stays in the primary filter device and the secondary filter device for a short time, which easily causes some powder with smaller particle size to be discharged from the discharge port, resulting in poor screening effect. Utility Model Content

[0005] In response to the above-mentioned deficiencies in the prior art, the utility model provides a multi-stage screening device for alloy powder. During screening, a plug plate blocks the discharge port on the shell, so that the powder on the screen has sufficient residence time to improve the screening effect. When discharging the powder outward, the plug plate is opened, and the telescopic end of the electric telescopic rod contracts to cause the filter to shake in an inclined state, thereby discharging the material from the discharge port.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-stage screening device for alloy powder, comprising a shell, a partition plate is vertically arranged in the shell, the partition plate separates the shell into a screening chamber and an adjusting chamber, a plurality of through holes are provided on the partition plate, a plurality of pairs of connecting blocks are provided on the inner wall of the shell away from the partition plate, a plurality of rotating plates are rotatably provided on the plurality of pairs of connecting blocks, one end of each rotating plate away from the connecting block passes through the through hole and extends into the adjusting chamber, a filter screen is provided on each rotating plate, a plurality of discharge ports are provided on the side wall of the shell corresponding to the positions of the plurality of pairs of connecting blocks, A plug plate is inserted in each of the discharge ports, and the shell is located at the top of the adjusting chamber and is provided with multiple support rods, and a top plate is provided on the top of the multiple support rods, and an electric telescopic rod is provided at the bottom of the top plate. The telescopic end of the electric telescopic rod is connected to a motor, and the output end of the motor is connected to a rotating shaft, and the rotating shaft rotates and slides vertically on the shell. The rotating shaft is set in the adjusting chamber and has multiple turntables thereon, and each turntable is circumferentially provided with multiple inclined blocks, and multiple inclined blocks are slidably connected to the rotating plate. The shell is located at the top of the screening chamber and is connected to a feed pipe and a discharge pipe.

[0007] Preferably, each of the rotating plates is provided with a baffle, and when the rotating plate is in a horizontal position, the baffle is located in the through hole.

[0008] Preferably, a plurality of hoppers are provided in the screening chamber of the shell and on both sides of each rotating plate, and the bottom of the lowest hopper is connected to the discharge pipe.

[0009] Preferably, each of the plug boards is provided with a pair of limit bars, and the housing is provided with a plurality of pairs of limit slots, and the limit bars are slidably arranged in the limit slots.

[0010] The utility model provides a multi-stage screening device for alloy powder, which has the following beneficial effects:

[0011] 1. During screening, the utility model uses a plug plate to block the discharge port on the housing, allowing the powder on the screen to have sufficient residence time to improve the screening effect. When discharging the powder, the plug plate is opened, and the telescopic end of the electric telescopic rod contracts, causing the filter to shake in an inclined state, thereby allowing the material to be discharged from the discharge port;

[0012] 2. The hoppers on the upper and lower sides of the rotating plate of the utility model can make the material fall to the center position near the filter screen, and the lowermost hopper discharges the screened material from the discharge pipe; the limit bar is slidably set in the limit groove, which can limit the insert plate and prevent the insert plate from detaching from the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model during screening;

[0014] Figure 2 It is a structural schematic diagram of the utility model during discharge.

[0015] In the figure: 1. Shell; 1-1. Partition; 1-2. Through hole; 1-3. Screening chamber; 1-4. Adjusting chamber; 2. Feed pipe; 3. Connecting block; 4. Rotating plate; 5. Filter; 6. Hopper; 7. Discharge pipe; 8. Baffle; 9. Support rod; 10. Top plate; 11. Electric telescopic rod; 12. Motor; 13. Rotating shaft; 14. Turntable; 15. Inclined block; 16. Insert plate; 17. Limiting bar. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] like Figure 1-2As shown, a multi-stage screening device for alloy powder comprises a shell 1, a partition 1-1 is vertically arranged in the shell 1, the partition 1-1 separates the shell 1 into a screening chamber 1-3 and an adjusting chamber 1-4, a plurality of through holes 1-2 are provided on the partition 1-1, a plurality of pairs of connecting blocks 3 are provided on the inner wall of the shell 1 away from the partition 1-1, a plurality of rotating plates 4 are rotatably provided on the plurality of pairs of connecting blocks 3, one end of each of the rotating plates 4 away from the connecting block 3 passes through the through hole 1-2 and extends into the adjusting chamber 1-4, a filter screen 5 is provided on each of the rotating plates 4, a plurality of discharge ports are provided on the side wall of the shell 1 corresponding to the positions of the plurality of pairs of connecting blocks 3, and a plurality of plug plates 16 are inserted in the plurality of discharge ports, a plurality of support rods 9 are provided on the top of the shell 1 at the adjusting chamber 1-4, a top plate 10 is provided on the top of the plurality of support rods 9, an electric telescopic rod 11 is provided at the bottom of the top plate 10, and the electric telescopic rod 1 1 is connected to the telescopic end of the motor 12, and the output end of the motor 12 is connected to the rotating shaft 13, and the rotating shaft 13 rotates and slides vertically on the shell 1, and the rotating shaft 13 is arranged in the adjusting cavity 1-4 and a plurality of turntables 14 are arranged thereon, and each of the turntables 14 is provided with a plurality of inclined blocks 15 on the circumference, and the plurality of inclined blocks 15 are slidably connected to the rotating plate 4, and the shell 1 is located at the top of the screening cavity 1-3 and is connected to the feed pipe 2, and the bottom is connected to the discharge pipe 7; a baffle 8 is provided on each of the rotating plates 4, and when the rotating plate 4 is in a horizontal position, the baffle 8 is located in the through hole 1-2; a plurality of hoppers 6 are provided in the screening cavity 1-3 of the shell 1 and on both sides of each rotating plate 4, and the bottom of the lowest hopper 6 is connected to the discharge pipe 7; a pair of limit bars 17 are provided on each of the inserting plates 16, and a plurality of pairs of limit grooves are provided on the shell 1, and the limit bars 17 are slidably arranged in the limit grooves.

[0018] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:

[0019] In the present invention, the electric telescopic rod 11 and the motor 12 are connected to the external electric control system through wires. The above devices and connection methods are all existing technologies and will not be described in detail here.

[0020] According to the instruction manual Figure 1-2It can be seen that when the present invention is in use, alloy powder is transported into the shell 1 through the feed pipe 2 at the top of the shell 1, and the motor 12 arranged on the telescopic end of the electric telescopic rod 11 is started. The output end of the motor 12 drives the connected rotating shaft 13 to rotate, and the rotating shaft 13 drives the multiple turntables 14 arranged thereon to rotate, and each turntable 14 drives the multiple inclined blocks 15 arranged thereon to rotate. Since one side of each rotating plate 4 is rotatably connected to a pair of connecting blocks 3, when the inclined surfaces of the multiple inclined blocks 15 contact the side of the rotating plate 4 located in the adjusting chamber 1-4, the rotating plate 4 can be shaken, thereby causing the multiple filter screens 5 to screen the alloy powder. Since the plug plate 16 blocks the discharge port on the shell 1, the powder on the screen has enough residence time to be fully screened, so that the powder with the smallest particle size is discharged from the discharge pipe 7 at the bottom of the shell 1. When the screening is completed, it needs to be discharged to the outside. When the powder is discharged outwards, the plug plate 16 is opened, and the telescopic end of the electric telescopic rod 11 is contracted to cause the filter screen 5 to shake in a tilted state, thereby causing the material to be discharged from the discharge port.

[0021] In one possible implementation, the baffle 8 provided on the rotating plate 4 can prevent the material from entering the regulating chamber 1-4 when the screen is shaking.

[0022] In one possible implementation, the hoppers 6 on the upper and lower sides of the rotating plate 4 can cause the material to fall onto a position close to the center of the filter screen 5 , and the lowermost hopper 6 discharges the screened material from the discharge pipe 7 .

[0023] In one possible implementation, the limiting strip 17 is slidably disposed in the limiting groove to limit the inserting plate 16 and prevent the inserting plate 16 from being separated from the housing 1 .

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage screening device for alloy powder, comprising a housing (1), characterized in that: A partition (1-1) is vertically arranged in the shell (1), and the partition (1-1) separates the shell (1) into a screening chamber (1-3) and an adjustment chamber (1-4). A plurality of through holes (1-2) are provided on the partition (1-1). A plurality of pairs of connecting blocks (3) are provided on the inner wall of the shell (1) away from the partition (1-1). A plurality of rotating plates (4) are rotatably arranged on the plurality of pairs of connecting blocks (3). One end of each rotating plate (4) away from the connecting block (3) passes through the through hole (1-2) and extends into the adjustment chamber (1-4). A filter screen (5) is provided on each rotating plate (4). A plurality of discharge ports are provided on the side wall of the shell (1) corresponding to the positions of the plurality of pairs of connecting blocks (3). Insert plates (16) are inserted into the plurality of discharge ports. The shell (1) is located in the adjustment chamber. A plurality of support rods (9) are provided on the top of the plurality of support rods (9), a top plate (10) is provided on the top of the plurality of support rods (9), an electric telescopic rod (11) is provided on the bottom of the top plate (10), the telescopic end of the electric telescopic rod (11) is connected to a motor (12), the output end of the motor (12) is connected to a rotating shaft (13), the rotating shaft (13) is arranged on the shell (1) in a rotating and vertically sliding manner, the rotating shaft (13) is arranged in the adjustment chamber (1-4) and a plurality of turntables (14) are arranged thereon, each of the turntables (14) is provided with a plurality of inclined blocks (15) in the circumferential direction, and the plurality of inclined blocks (15) are slidably connected to the rotating plate (4), the shell (1) is located at the top of the screening chamber (1-3) and is connected to a feed pipe (2), and is connected to a discharge pipe (7) at the bottom.

2. The alloy powder multi-stage screening device according to claim 1, characterized in that: Each rotating plate (4) is provided with a blocking bar (8), and when the rotating plate (4) is in a horizontal position, the blocking bar (8) is located in the through hole (1-2).

3. The alloy powder multi-stage screening device according to claim 1, characterized in that: A plurality of hoppers (6) are provided in the screening chamber (1-3) of the housing (1) and on both sides of each rotating plate (4), and the bottom of the lowest hopper (6) is connected to a discharge pipe (7).

4. The alloy powder multi-stage screening device according to claim 1, characterized in that: Each of the inserting plates (16) is provided with a pair of limiting strips (17), and the housing (1) is provided with a plurality of pairs of limiting slots, in which the limiting strips (17) are slidably arranged.

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