Aluminum powder impurity removing and screening device

Abstract

The utility model provides an aluminum powder impurity removal screening device, and relates to the technical field of aluminum powder impurity removal screening, the aluminum powder impurity removal screening device comprises a screening box and two screening baskets, the bottom surface of the screening box is fixedly provided with a plurality of supporting legs, and the center of the top surface of the screening box is connected with a feeding port in a penetrating mode; the center of the surface of the bottom of the screening box is connected with a discharging port in a penetrating mode, a control terminal is fixedly arranged on the surface of one side of the screening box, a box door is connected to an opening in the surface of the other side of the screening box through a hinge, two U-shaped rails are fixedly installed on the surfaces of the inner walls of the two sides of the screening box correspondingly, and shaking assemblies are arranged on the surfaces of the two sides of the screening box. And a feeding assembly is arranged on the surface of the top of the screening box. According to the aluminum powder screening device, the reciprocating lead screw, the U-shaped plate, the two limiting rods and the two limiting holes drive the two screening baskets to shake in a reciprocating mode, the screening efficiency of aluminum powder in the screening baskets is improved, the two limiting rods are moved out from the interiors of the two limiting holes, and the two screening baskets can be taken out and cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum powder impurity removing and screening technical field, especially to a kind of aluminum powder impurity removing and screening device. BACKGROUND

[0002] In industrial production, aluminum powder is widely used in the fields of automobile, aerospace, electronics, etc. However, in the production process (or in the recycled aluminum powder), it is inevitable to have particles of different sizes, as well as some adhered dust and other impurities. These impurities can easily affect the purity, quality and use effect of aluminum powder, so it is necessary to remove and screen the aluminum powder.

[0003] However, in the prior art, the screen plates of the aluminum powder impurity removing and screening device are mostly fixed inside the screening box by multiple bolts. When the screen plate needs to be cleaned, the bolts need to be unscrewed one by one and the screen plate needs to be taken out, which is very inconvenient for installation and disassembly. Moreover, the existing part of the aluminum powder impurity removing and screening device is not convenient to control the speed of adding aluminum powder. A large amount of aluminum powder added will cause the aluminum powder to accumulate on the surface of the screen plate, resulting in screen plate blockage and affecting the aluminum powder screening efficiency. SUMMARY

[0004] The utility model aims at solving the problems existing in the prior art.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: an aluminum powder impurity removing and screening device, comprising: a screening box and two screening baskets, the bottom surface of the screening box is fixedly installed with a plurality of supporting legs, the top surface center of the screening box is through connection with a feeding port, the bottom surface center of the screening box is through connection with a discharge port, one side surface of the screening box is fixedly provided with a control terminal, the other side surface opening of the screening box is connected with a box door through a hinge, the inner wall surface of the both sides of the screening box is fixedly installed with two U-shaped tracks, one side surface of two screening baskets is fixedly installed with a U-shaped rod, the other two side surfaces of two screening baskets are symmetrically rotatably installed with two wheels, every two of a plurality of wheels are correspondingly movably and closely embedded in the inside of a plurality of U-shaped tracks, one side surface of a plurality of wheels is embeddedly installed with a ball, one side inner wall surface of a plurality of U-shaped tracks is movably and closely embedded with a plurality of balls, the other side surface of two screening baskets is fixedly installed with a connecting plate, the connecting plate is movably and closely embedded through one side inner wall surface of the screening box, the top surface of two connecting plates is provided with a limiting hole at one end, the both side surfaces of the screening box are provided with a shaking assembly, the top surface of the screening box is provided with a feeding assembly, the shaking assembly comprises two horizontal grooves, one end of the both side surfaces of the screening box is correspondingly provided with two horizontal grooves, one side inner wall surface of two horizontal grooves is fixedly installed with a first motor, the output end of two first motors is fixedly installed with a reciprocating screw rod, one end surface of two reciprocating screw rods is connected to the other side inner wall surface of two horizontal grooves through a bearing.

[0006] Further, the surface of two reciprocating screw rods is threadedly connected with a movable block, the upper and lower side surfaces of two movable blocks are movably and closely embedded with the upper and lower end inner wall surfaces of two horizontal grooves, one side surface of two movable blocks is fixedly installed with a U-shaped plate, the top surface of the U-shaped plate is symmetrically and through provided with a cross groove, two cross grooves are movably and closely embedded with a cross plate.

[0007] Further, the upper and lower side surfaces of the U-shaped plate are symmetrically fixedly installed with two vertical rods, the end surface of a plurality of vertical rods away from the U-shaped plate is fixedly installed with a limiting disc, the surface of a plurality of vertical rods every two as a group is movably and closely sleeved with a movable plate, one side surface of two movable plates is fixedly installed with a limiting rod, two limiting rods are correspondingly inserted into the inside of two limiting holes.

[0008] Further, the both end surfaces of two movable plates are hingedly connected with a hinged plate, one end of a plurality of hinged plates is correspondingly hingedly connected to the upper and lower side surfaces of two cross plates.

[0009] Further, the other side surface of the U-shaped plate is symmetrically fixedly provided with two baffles, the center of the other side surface of the U-shaped plate is fixedly provided with a double-shaft motor, two output ends of the double-shaft motor are fixedly provided with threaded rods, the other ends of the threaded rods are connected to the side surface of the two baffles through bearings, and one end of the two cross plates is threadedly sleeved on the outer wall surface of the two threaded rods.

[0010] Further, the feeding assembly comprises two vertical plates and two inclined grooves, the two vertical plates are fixedly installed on the top surface of the screening box, the feeding opening is located between the two vertical plates, the side surface of the two vertical plates is fixedly provided with a second motor, the output end of the second motor is fixedly provided with a circular plate, the side surface of the circular plate is fixedly and penetratively provided with a push rod, the two inclined grooves are symmetrically formed in the bottom end surface of the feeding opening, the top surface of the screening box is movably and tightly penetrated with two T-shaped plates, and the two T-shaped plates are located on the two sides of the feeding opening.

[0011] Further, the top end of the side surface of the two T-shaped plates is penetratively provided with a through groove, the two push rods are movably and tightly inserted into the two through grooves, the bottom end surface of the two T-shaped plates is fixedly provided with an extension plate, the side surface of the two extension plates is fixedly provided with a triangular plate, and the two inclined surfaces of the top surface of the triangular plate are movably and tightly combined with the two inclined grooves.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1、the utility model discloses, first through the feeding opening adds the aluminium powder to the inside of screening box, and the aluminium powder falls in the inside of the upper screening basket through the feeding opening, and two first motors run and drive two reciprocating screws to rotate, and two reciprocating screws rotate and drive two movable blocks to reciprocate in two horizontal grooves, and two movable blocks move and drive two U-shaped plates to reciprocate, and two U-shaped plates move and drive two limit rods to move, thereby drive two connecting plates to reciprocate, and two connecting plates move and drive two screening baskets to reciprocate in two U-shaped tracks with a plurality of wheels, and the aluminium powder is processed through two screening baskets two-stage screening, and finally the screened aluminium powder is discharged from the inside of screening box through the discharge opening.

[0014] The double-shaft motor drives two threaded rods to rotate, the two threaded rods drive two cross plates to move in the two cross grooves in directions opposite to each other, the two cross plates drive a plurality of hinged plates to move, the plurality of hinged plates drive two movable plates to move on the surfaces of the plurality of vertical rods in the direction of the U-shaped plate, the two movable plates drive two limiting rods to move, the two limiting rods move out of the two limiting holes, so that the two connecting plates are no longer limited, then the box door is opened, and the two screening baskets are taken out through the two U-shaped rods for cleaning, and after the two screening baskets are cleaned, the two screening baskets are reset, then the control terminal drives the double-shaft motor to move in a direction, so that the two limiting rods are inserted into the two limiting holes, so that the purpose of disassembling and installing the screening basket is achieved.

[0015] Through the cooperation of the above structure, the reciprocating screw rod, the U-shaped plate, the two limiting rods and the two limiting holes drive the two screening baskets to reciprocate, so that the screening efficiency of the aluminum powder in the screening basket is accelerated, the two limiting rods are moved out of the two limiting holes, the two screening baskets can be taken out and cleaned, and the practicability of the device is improved.

[0016] 2. The utility model discloses, pre-adding aluminum powder to the inside of material adding port, two second motor operation drives two round plate rotation, two round plate rotation drives two push rod to rotate with two round plate center as center axis, two push rod reciprocating moves in two through -groove, to drive two T -shaped plate reciprocating moves up and down, two T -shaped plate moves and drives two extension plate to move, two extension plate moves and drives triangle plate reciprocating moves up and down, and triangle plate moves makes its two inclined surfaces separate two inclined grooves, so that aluminum powder falls to the inside of screening box through two inclined surfaces of triangle plate, and the rate of adding aluminum powder is controlled through the speed regulation of two second motors;

[0017] Through the cooperation of the above structure, the efficiency of adding aluminum powder is controlled through the continuous up-and-down movement of the triangle plate, and the efficiency of aluminum powder screening is affected by preventing a large amount of aluminum powder from being added at one time and blocking the screening basket. ACCURACY OF DRAWINGS

[0018] Figure 1 A three-dimensional structural schematic view of the aluminum powder impurity removing and screening device is provided.

[0019] Figure 2 A partial structural schematic view of the aluminum powder impurity removing and screening device is provided.

[0020] Figure 3 A screening frame structural schematic view of the aluminum powder impurity removing and screening device is provided.

[0021] Figure 4 A right view structural schematic view of the aluminum powder impurity removing and screening device Figure 3 is provided.

[0022] Figure 5 The right view structural schematic diagram of the aluminum powder impurity removing and screening device is provided.

[0023] Figure 6 The structure schematic diagram of the material adding assembly of the aluminum powder impurity removing and screening device is provided.

[0024] Figure 7 The disassembly structure schematic diagram of the aluminum powder impurity removing and screening device is provided. Figure 6

[0025] Figure 8 The structure schematic diagram of A in the aluminum powder impurity removing and screening device is provided. Figure 5

[0026] The structure schematic diagram of B in the aluminum powder impurity removing and screening device is provided. Figure 9 Figure 5 Legend:

[0027] 1, screening box; 101, material adding port; 102, material discharging port; 2, supporting leg; 3, control terminal; 4, box door; 5, U-shaped track; 6, screening basket; 601, U-shaped rod; 602, wheel; 603, ball; 604, connecting plate; 605, limiting hole; 7, shaking assembly; 701, horizontal groove; 702, first motor; 703, reciprocating screw rod; 704, movable block; 705, U-shaped plate; 706, cross groove; 707, cross plate; 708, vertical rod; 709, limiting disc; 710, movable plate; 711, limiting rod; 712, hinged plate; 713, baffle; 714, double-shaft motor; 715, threaded rod; 8, material adding assembly; 801, vertical plate; 802, second motor; 803, circular plate; 804, push rod; 805, T-shaped plate; 806, through groove; 807, extension plate; 808, triangular plate; 809, inclined groove. DETAILED DESCRIPTION

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

[0029]

[0030] Figures 1-9 ​​​The utility model provides a technical scheme: an aluminum powder impurity removing and screening device, it includes: screening box 1 and two screening baskets 6, a plurality of supporting legs 2 are fixedly installed to the bottom surface of screening box 1, the top surface center of screening box 1 is connected with feeding port 101 through the penetration, the bottom surface center of screening box 1 is connected with discharge port 102 through the penetration, the side surface of screening box 1 is fixed with control terminal 3, the opening of the other side surface of screening box 1 is connected with box door 4 through the hinge, the both side inner wall surfaces of screening box 1 are all fixedly installed with two U-shaped tracks 5, the side surface of two screening baskets 6 is all fixedly installed with U-shaped rod 601, the other two side surfaces of two screening baskets 6 are all symmetrically rotatably installed with two wheels 602, every two of a plurality of wheels 602 are a group and are correspondingly movably attached and embedded in the inside of a plurality of U-shaped tracks 5, the side surface of a plurality of wheels 602 is all embeddedly installed with ball 603, a plurality of balls 603 correspondingly movably attach the side inner wall surface of a plurality of U-shaped tracks 5, the other side surface of two screening baskets 6 is all fixedly installed with connecting plate 604, two connecting plates 604 all movably attach and penetrate the side inner wall surface of screening box 1, the top surface of both ends of two connecting plates 604 is all provided with limiting hole 605, the both side surfaces of screening box 1 are equipped with shaking assembly 7, the top surface of screening box 1 is equipped with feeding assembly 8, shaking assembly 7 includes two horizontal grooves 701, two horizontal grooves 701 are correspondingly provided in the one end of both side surfaces of screening box 1, the side inner wall surface of both ends of two horizontal grooves 701 is all fixedly installed with first motor 702, the output of both ends of two first motors 702 is all fixedly installed with reciprocating screw rod 703, the one end surface of both ends of two reciprocating screw rods 703 is connected to the other side inner wall surface of both ends of two horizontal grooves 701 through bearing.

[0031] Specifically: control terminal 3 plays the role of controlling the operation of two first motors 702, double-shaft motor 714 and two second motors 802, a plurality of balls 603 cooperate with a plurality of wheels 602 to play the role of assisting the movement of two screening baskets 6, a plurality of balls 603 movably attach the side inner wall surface of a plurality of U-shaped tracks 5, ensure that the position of two screening baskets 6 installed each time is same, first motor 702 plays the role of driving reciprocating screw rod 703 to rotate, the screening hole of the upper screening basket 6 is larger than the screening hole of the lower screening basket 6, the upper screening basket 6 can screen larger impurities than aluminum powder, the lower screening basket 6 can further refine and screen aluminum powder.

[0032] In one embodiment, the surface of both ends of two reciprocating screw rods 703 is all screw-connected with movable block 704, the upper and lower side surfaces of both ends of two movable blocks 704 correspondingly movably attach the upper and lower end inner wall surfaces of both ends of two horizontal grooves 701, the side surface of both ends of two movable blocks 704 is all fixedly installed with U-shaped plate 705, the top surface of U-shaped plate 705 is symmetrically provided with cross groove 706 through the penetration, both ends of two cross grooves 706 are all movably attached and installed with cross plate 707.

[0033] Specifically, asFigures 8-9 As shown: the upper and lower side surfaces of the movable block 704 correspond to the upper and lower side inner wall surfaces of the horizontal groove 701, and the movable block 704 is stably moved by means of the reciprocating wire rod 703 and the horizontal groove 701.

[0034] In an embodiment, the upper and lower side surfaces of the U-shaped plate 705 are symmetrically and fixedly provided with two vertical rods 708, the ends of the plurality of vertical rods 708 away from the surface of the U-shaped plate 705 are fixedly provided with limiting discs 709, the surfaces of every two vertical rods 708 are movably provided with a movable plate 710, one side surface of the two movable plates 710 is fixedly provided with a limiting rod 711, and the two limiting rods 711 are inserted into the inside of the two limiting holes 605.

[0035] Specifically, as shown in the figure, Figure 9 As shown: the plurality of limiting discs 709 prevent the two movable plates 710 from separating from the surface of the plurality of vertical rods 708, the two limiting rods 711 are inserted into the inside of the two limiting holes 605, and the two limiting rods 711 limit the movement of the two connecting plates 604.

[0036] In an embodiment, the two ends of the two movable plates 710 are hingedly provided with a hinge plate 712, and one end of the plurality of hinge plates 712 is hingedly connected to the upper and lower side surfaces of the two cross plates 707.

[0037] Specifically, as shown in the figure, Figure 9 As shown: the plurality of hinge plates 712 drive the movement of the two movable plates 710.

[0038] In an embodiment, the other side surface of the U-shaped plate 705 is symmetrically and fixedly provided with two baffles 713, the center of the other side surface of the U-shaped plate 705 is fixedly provided with a double-shaft motor 714, the two output ends of the two double-shaft motors 714 are fixedly provided with threaded rods 715, the other ends of the two threaded rods 715 are connected to one side surface of the two baffles 713 through bearings, and one end of the two cross plates 707 is screwedly provided on the outer wall surface of the two threaded rods 715.

[0039] Specifically, as shown in the figure, Figure 9 As shown: the double-shaft motor 714 is a forward and reverse rotation motor, which drives the forward and reverse rotation of the two threaded rods 715, and the two threaded rods 715 drive the movement of the two cross plates 707 in the two cross grooves 706 in opposite directions.

[0040] In an embodiment, the feeding assembly 8 comprises two vertical plates 801 and two inclined grooves 809, the two vertical plates 801 are fixedly installed on the top surface of the screening box 1, the feeding port 101 is located between the two vertical plates 801, the side surface of each of the two vertical plates 801 is fixedly installed with a second motor 802, the output end of each of the two second motors 802 is fixedly installed with a circular plate 803, the side surface of each of the two circular plates 803 is fixedly penetrated and installed with a push rod 804, the two inclined grooves 809 are symmetrically formed on the bottom end surface of the feeding port 101, and the top surface of the screening box 1 is movably attached and penetrated with two T-shaped plates 805, and the two T-shaped plates 805 are correspondingly located on the two sides of the feeding port 101.

[0041] Specifically, as shown in Figures 6-7 The two second motors 802 drive the two circular plates 803 to rotate synchronously, and the two circular plates 803 drive the two push rods 804 to rotate correspondingly.

[0042] In an embodiment, the top end of the side surface of each of the two T-shaped plates 805 is penetrated and formed with a through groove 806, the two push rods 804 are correspondingly movably inserted into the inside of the two through grooves 806, the bottom end surface of each of the two T-shaped plates 805 is fixedly installed with an extension plate 807, the side surface of each of the two extension plates 807 is fixedly installed with a triangular plate 808, and the top surface of the triangular plate 808 is movably attached with the two inclined grooves 809.

[0043] Specifically, as shown in Figures 6-7 The top of the screening box 1 is penetrated and formed with two rectangular limiting movable grooves (not shown in the drawings), the rectangular limiting movable grooves are matched with the surface of the T-shaped plate 805, and the T-shaped plate 805 can slide up and down in the inside of the rectangular limiting movable grooves; one end of each of the two push rods 804 is provided with a limiting plate for preventing the push rod 804 from being separated from the inside of the through groove 806; the through groove 806 provides a movable space for the left and right movement of the push rod 804, when the two push rods 804 rotate following the two circular plates 803, the two push rods 804 move left and right in the inside of the corresponding two through grooves 806, and since the T-shaped plate 805 is limited by the rectangular limiting movable groove, the two T-shaped plates 805 move up and down reciprocatingly; the two inclined surfaces of the triangular plate 808 are movably attached with the side surface of the two inclined grooves 809, and the two side surfaces of the triangular plate 808 are movably attached with the inner wall surfaces on the two sides of the feeding port 101, thereby sealing the lower end of the feeding port 101.

[0044] Working principle:

[0045] When the aluminum powder impurity removal and screening device needs to be used, first, aluminum powder is added to the inside of the screening box 1 through the feeding opening 101, and the aluminum powder falls into the inside of the upper screening basket 6 through the feeding opening 101. Then, the two first motors 702 are operated by the control terminal 3, the two first motors 702 are operated to drive the two reciprocating lead screws 703 to rotate, the two reciprocating lead screws 703 are rotated to drive the two movable blocks 704 to move left and right in the two transverse grooves 701, the two movable blocks 704 are moved to drive the two U-shaped plates 705 to move left and right, the two U-shaped plates 705 are moved to drive the two limiting rods 711 to move, the two limiting rods 711 are inserted into the two limiting holes 605, thereby driving the two connecting plates 604 to move left and right, the two connecting plates 604 are moved to drive the two screening baskets 6 to move left and right in the two U-shaped tracks 5 in cooperation with the plurality of wheels 602, and the aluminum powder is subjected to two-stage screening treatment through the two screening baskets 6. Finally, the screened aluminum powder is discharged out of the inside of the screening box 1 through the discharge opening 102.

[0046] When the screening basket 6 needs to be cleaned, first, the two first motors 702 are stopped and the two-shaft motor 714 is operated by the control terminal 3, the two-shaft motor 714 is operated to drive the two threaded rods 715 to rotate, the two threaded rods 715 are rotated to drive the two cross plates 707 to move in the two cross grooves 706 towards opposite directions, the two cross plates 707 are moved to drive the plurality of hinged plates 712 to move, the plurality of hinged plates 712 are moved to drive the two movable plates 710 to move on the surfaces of the plurality of vertical rods 708 towards the U-shaped plate 705, the two movable plates 710 are moved to drive the two limiting rods 711 to move, the two limiting rods 711 are moved to move out of the two limiting holes 605, thereby causing the two connecting plates 604 to lose the limiting, then the door 4 is opened and the two screening baskets 6 are taken out through the two U-shaped rods 601 for cleaning. After the two screening baskets 6 are cleaned, they are reset, then the two-shaft motor 714 is moved by the control terminal 3, so that the two limiting rods 711 are re-inserted into the two limiting holes 605, thereby achieving the purpose of disassembling and installing the screening basket 6;

[0047] Through the cooperation of the above structure, the reciprocating lead screw 703, the U-shaped plate 705, the two limiting rods 711 and the two limiting holes 605 drive the two screening baskets 6 to reciprocate and shake, thereby accelerating the screening efficiency of the aluminum powder in the screening basket 6. The two limiting rods 711 are moved out of the two limiting holes 605, so that the two screening baskets 6 can be taken out and cleaned, thereby improving the practicability of the device;

[0048] When the rate of adding aluminum powder needs to be controlled, the aluminum powder is added to the inside of the feeding port 101 in advance, and then two second motors 802 are operated by controlling the terminal 3, the two second motors 802 drive two circular plates 803 to rotate, the two circular plates 803 drive two push rods 804 to rotate around the center of the two circular plates 803 as the center axis, the two push rods 804 reciprocate in the inside of two through grooves 806, thereby driving two T-shaped plates 805 to reciprocate up and down, the two T-shaped plates 805 drive two extension plates 807 to move, the two extension plates 807 drive a triangular plate 808 to reciprocate up and down, the triangular plate 808 moves so that the two inclined surfaces thereof are separated from two inclined grooves 809, thereby enabling the aluminum powder to roll into the inside of the screening box 1 through the two inclined surfaces of the triangular plate 808, and the rate of adding the aluminum powder is controlled by adjusting the rotating speed of the two second motors 802.

[0049] Through the cooperation of the above structure, the efficiency of adding the aluminum powder is controlled by the continuous up-and-down movement of the triangular plate 808, so that the screening basket 6 is prevented from being blocked by a large amount of aluminum powder added at one time, and the efficiency of screening the aluminum powder is affected.

[0050] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application, which does not deviate from the technical scheme of the present application, still belongs to the protection scope of the present application.

Claims

1. An aluminum powder impurity removing and screening device, characterized by comprising: Include: Screening box (1) and two screening baskets (6), the bottom surface of the screening box (1) is fixedly provided with a plurality of supporting legs (2), the top surface of the center of the screening box (1) is connected with a feeding port (101), the bottom surface of the center of the screening box (1) is connected with a discharge port (102), one side surface of the screening box (1) is fixedly provided with a control terminal (3), the other side surface of the screening box (1) is hingedly connected with a box door (4), both side inner wall surfaces of the screening box (1) are fixedly provided with two U-shaped tracks (5), one side surface of each of the two screening baskets (6) is fixedly provided with a U-shaped rod (601), both side surfaces of each of the two screening baskets (6) are rotatably provided with two wheels (602), every two of the plurality of wheels (602) are correspondingly movably fitted in the interiors of the plurality of U-shaped tracks (5), one side surface of each of the plurality of wheels (602) is movably fitted with a ball (603), the plurality of balls (603) are movably fitted to one side inner wall surface of the plurality of U-shaped tracks (5), the other side surface of each of the two screening baskets (6) is fixedly provided with a connecting plate (604), both of the connecting plates (604) are movably fitted through one side inner wall surface of the screening box (1), one end of the top surface of each of the two connecting plates (604) is provided with a limiting hole (605), both side surfaces of the screening box (1) are provided with a shaking assembly (7), the top surface of the screening box (1) is provided with a feeding assembly (8), the shaking assembly (7) comprises two horizontal grooves (701), one end of each of the two horizontal grooves (701) is movably fitted to one side surface of the screening box (1), one side inner wall surface of each of the two horizontal grooves (701) is fixedly provided with a first motor (702), the output end of each of the two first motors (702) is fixedly provided with a reciprocating screw rod (703), one end surface of each of the two reciprocating screw rods (703) is movably connected to the other side inner wall surface of each of the two horizontal grooves (701).

2. The aluminum powder impurity removal and screening device according to claim 1, characterized in that: The surface of each of the two reciprocating screw rods (703) is movably provided with a movable block (704), the upper and lower side surfaces of each of the two movable blocks (704) are movably fitted to the upper and lower end inner wall surfaces of each of the two horizontal grooves (701), one side surface of each of the two movable blocks (704) is fixedly provided with a U-shaped plate (705), the top surface of the U-shaped plate (705) is movably provided with a cross groove (706), the interior of each of the two cross grooves (706) is movably fitted with a cross plate (707).

3. The aluminum powder impurity removal and screening device according to claim 2, characterized in that: Both upper and lower side surfaces of the U-shaped plate (705) are symmetrically fixedly installed with two vertical rods (708), one end surfaces of the plurality of vertical rods (708) away from the U-shaped plate (705) are fixedly installed with a plurality of limiting discs (709), the surface of every two of the plurality of vertical rods (708) is movably and abutly sleeved with a movable plate (710), one side surfaces of the two movable plates (710) are fixedly installed with a limiting rod (711), and the two limiting rods (711) are correspondingly inserted into the interiors of the two limiting holes (605).

4. The aluminum powder impurity removal and screening device according to claim 3, characterized in that: Both end surfaces of the two movable plates (710) are hingedly connected with a hinge plate (712), and one end of the plurality of hinge plates (712) is correspondingly hingedly connected to the upper and lower side surfaces of the two cross plates (707).

5. The aluminum powder impurity removal and screening device according to claim 2, characterized in that: The other side surface of the U-shaped plate (705) is symmetrically fixedly installed with two baffle plates (713), the center of the other side surface of the U-shaped plate (705) is fixedly installed with a double-shaft motor (714), both output ends of the two double-shaft motors (714) are fixedly installed with threaded rods (715), the other ends of the two threaded rods (715) are correspondingly connected to the one side surfaces of the two baffle plates (713) through bearings, and one end of the two cross plates (707) is correspondingly threadedly sleeved on the outer wall surfaces of the two threaded rods (715).

6. The aluminum powder impurity removal and screening device according to claim 1, characterized in that: The feeding assembly (8) comprises two vertical plates (801) and two inclined grooves (809), the two vertical plates (801) are fixedly installed on the top surface of the screening box (1), the feeding opening (101) is located between the two vertical plates (801), one side surface of each of the two vertical plates (801) is fixedly installed with a second motor (802), the output end of each of the two second motors (802) is fixedly installed with a circular plate (803), one side surface of each of the two circular plates (803) is fixedly and penetratively installed with a push rod (804) near the edge position, the two inclined grooves (809) are symmetrically formed in the bottom end surface of the feeding opening (101), the top surface of the screening box (1) is movably and abutly penetrated with two T-shaped plates (805), and the two T-shaped plates (805) are correspondingly located on the two sides of the feeding opening (101).

7. The aluminum powder impurity removal and screening device according to claim 6, characterized in that: The top end of one side surface of each of the two T-shaped plates (805) is penetratively formed with a through groove (806), the two push rods (804) are correspondingly movably and abutly inserted into the interiors of the two through grooves (806), the bottom end surface of each of the two T-shaped plates (805) is fixedly installed with an extension plate (807), one side surface of each of the two extension plates (807) is fixedly installed with a triangular plate (808), and the two inclined surfaces of the top surface of the triangular plate (808) are movably and abutly connected to the two inclined grooves (809).

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