Aluminum powder processing and screening apparatus

Abstract

The application provides an aluminum powder processing and screening device, and belongs to the technical field of aluminum powder processing, which comprises a bottom plate, a screening box, a first driving mechanism and a second driving mechanism, the screening box is movably arranged above the bottom plate, first and second screens are respectively arranged on the upper and lower sides of the screening box, the first driving mechanism is arranged on the upper part of the bottom plate and is used for driving the horizontal reciprocating movement of the screening box to screen aluminum powder, and the second driving mechanism is arranged on the upper part of the bottom plate and is used for driving the intermittent rotation of the screening box by 180 degrees. Compared with the prior art, the upper and lower positions of the two groups of screens are continuously changed to alternately screen the aluminum powder, which can effectively avoid the phenomenon that the aluminum powder blocks the screens, while ensuring the shaking effect of the aluminum powder and improving the screening effect and efficiency of the aluminum powder.

Description

Technical Field

[0001] This invention belongs to the field of aluminum powder processing technology, specifically an aluminum powder processing and screening device. Background Technology

[0002] In industrial production, aluminum powder is widely used in the automotive, aerospace, and electronics industries. Currently, aluminum powder inevitably produces particles of varying sizes during the production and processing process. To improve the processing quality of aluminum powder, it is necessary to perform sieving.

[0003] In existing technologies, aluminum powder screening mostly relies on a drive structure to move the screen, causing the aluminum powder on the upper part of the screen to shake. During the shaking process, aluminum powder with a particle size smaller than the screen mesh aperture passes through the screen, while larger particles remain stuck on the upper part of the screen. However, due to the uncertainty of the aluminum powder particle size, during the shaking process, some aluminum powder with a particle size similar to the screen mesh aperture will get stuck above the mesh. These aluminum powders neither pass through the mesh nor leave the current mesh due to shaking, thus blocking the mesh and affecting the smooth passage of subsequent small-sized aluminum powder through the mesh. At the same time, it also affects the shaking effect of other aluminum powders, resulting in an unsatisfactory aluminum powder screening effect. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide an aluminum powder processing and screening device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] An aluminum powder processing and screening device includes a base plate, a screening box, a first drive mechanism, and a second drive mechanism.

[0007] The screening box is movably mounted above the base plate, and a first screen and a second screen are respectively installed on the upper and lower sides of the screening box.

[0008] The first drive mechanism is located on the upper part of the base plate and is used to drive the screening box to move horizontally and reciprocally to screen aluminum powder.

[0009] The second drive mechanism is installed on the upper part of the base plate and is used to drive the screening box to rotate intermittently at an angle of 180°, so that the first screen and the second screen are alternately located below the screening box.

[0010] As a further improvement of the present invention: a first support plate is fixedly provided on the upper part of the base plate, and a telescopic rod is fixedly provided at one end of the screening box, with the end of the telescopic rod away from the screening box being rotatably connected to the first support plate.

[0011] As a further improvement of the present invention: the second drive mechanism includes a piston air supply assembly, a one-way gear and rack assembly, and an exhaust assembly.

[0012] The one-way gear and rack assembly is disposed on the upper part of the base plate. One end of the piston air supply assembly is connected to the screening box, and the other end is connected to the one-way gear and rack assembly. When the screening box moves horizontally reciprocating, the piston air supply assembly supplies air to the one-way gear and rack assembly to drive the one-way gear and rack assembly to move upward.

[0013] The exhaust assembly is located inside the one-way gear rack assembly. When the one-way gear rack assembly moves up to a predetermined height, the exhaust assembly is used to exhaust the air supplied to the one-way gear rack assembly, causing the one-way gear rack assembly to move down, thereby driving the screening box to rotate 180°.

[0014] As a further improvement of the present invention: the piston air supply assembly includes a piston rod, a first piston cylinder, and an air supply pipe.

[0015] The air supply pipe is fixedly installed on the upper part of the base plate. One end of the piston rod is fixedly connected to the screening box, and the other end extends into the first piston cylinder and telescopically engages with the first piston cylinder. The end of the first piston cylinder away from the piston rod is connected to and communicates with the upper end of the air supply pipe. An air inlet pipe is provided on the side wall of the air supply pipe, and a one-way valve is provided inside the air inlet pipe.

[0016] The one-way gear rack assembly includes a supporting vertical rod, a supporting horizontal rod, a connecting rod, a second piston cylinder, and a gear.

[0017] The second piston cylinder is fixedly mounted on the upper part of the base plate. The second piston cylinder is connected to the air supply pipe through an air delivery pipe. The gear is fixedly mounted outside the first piston cylinder. The support vertical rod is mounted on one side of the gear and is vertically distributed. Several helical teeth are hinged on the side wall of the support vertical rod. Each set of helical teeth is connected to the support vertical rod on one side through a set of second elastic elements. The bottom of the support vertical rod is fixedly connected to the support horizontal rod. The bottom of the support horizontal rod is fixedly connected to the connecting rod. The lower end of the connecting rod extends into the interior of the second piston cylinder and is fixedly connected to a piston plate.

[0018] As a further improvement of the present invention: a key is fixedly provided on the outer wall of the piston rod along the length direction, and a keyway that cooperates with the key is opened on the inner wall of the first piston cylinder along the length direction. The end of the first piston cylinder away from the piston rod is connected to the upper end of the air supply pipe through a rotary joint.

[0019] As a further improvement of the present invention: the bottom of the piston plate is also connected to the inner bottom wall of the second piston cylinder through a first elastic element, the first elastic element being used to provide elastic tension to the piston plate.

[0020] As a further improvement of the present invention: an exhaust pipe is provided above the side wall of the second piston cylinder, and an exhaust port is provided on the piston plate, passing through both the upper and lower ends of the piston plate.

[0021] The exhaust assembly includes a first magnet, a sealing block, a second magnet, and a third magnet.

[0022] The sealing block is slidably disposed on the upper part of the piston plate to seal the exhaust port. The second magnet is fixedly disposed on the side wall of the sealing block. The first magnet and the third magnet are embedded in the inner wall of the second piston cylinder. The first magnet is located below the third magnet. The first magnet and the second magnet repel each other, and the third magnet and the second magnet attract each other.

[0023] As a further improvement of the present invention: the exhaust assembly further includes a slider and a guide rod, the guide rod is fixedly disposed on the side wall of the connecting rod, the slider is movably sleeved outside the guide rod, and the slider is fixedly installed on the upper part of the sealing block.

[0024] As a further improvement of the present invention: the first elastic element and the second elastic element are springs or metal sheets.

[0025] As a further improvement of the present invention: a second support plate is fixedly provided on the upper part of the base plate.

[0026] The first driving mechanism includes a ring plate, a driving rod, an eccentric rod, a turntable, and a motor.

[0027] The motor is fixedly mounted on the side wall of the second support plate. There are two sets of turntables, which are fixedly connected by the eccentric rod. One set of turntables is installed at the output end of the motor. The ring plate is sleeved on the outside of the piston rod and rotates with the piston rod through a bearing. One end of the drive rod is fixedly connected to the ring plate, and the other end extends between the two sets of turntables. A sliding groove is provided on the drive rod, and the eccentric rod passes through the sliding groove and moves with the drive rod.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] In this embodiment of the invention, initially, the second screen is positioned below the screening box, while the first screen is positioned above it. When aluminum powder needs to be screened, the aluminum powder to be screened can be placed inside the screening box, allowing the aluminum powder to act on the upper part of the second screen. Subsequently, the first driving mechanism drives the screening box to move horizontally back and forth, thereby driving the first and second screens to move synchronously back and forth. When the second screen moves back and forth, the aluminum powder above it shakes. Smaller aluminum powder particles pass through the second screen and fall downwards, while larger aluminum powder particles remain on the upper part of the second screen. After the screening box has moved horizontally back and forth for a predetermined time, the second driving mechanism drives the screening box to rotate 180°, so that the first screen is below the screening box and the second screen is above it. At this time, the remaining aluminum powder inside the screening box and the aluminum powder blocked in the mesh of the second screen fall onto the upper part of the first screen under the influence of gravity. As the screening box continues its horizontal reciprocating movement, the aluminum powder falling onto the upper part of the first screen continues to sway. Smaller aluminum powder particles continue to pass through the first screen, while larger aluminum powder particles remain on the upper part of the first screen. After the screening box has moved horizontally for a predetermined time, the second drive mechanism rotates the screening box 180° again, so that the second screen is below again and the first screen is above again. This cycle repeats, allowing the first and second screens to alternately occupy the lower position of the screening box, thus alternating their participation in the aluminum powder screening operation. This avoids aluminum powder clogging the screens and improves the screening effect and efficiency. Compared with existing technologies, by constantly changing the upper and lower positions of the two sets of screens to alternately screen the aluminum powder, the phenomenon of aluminum powder clogging the screens can be effectively avoided, while ensuring the swaying effect of the aluminum powder and improving the screening effect and efficiency. Attached Figure Description

[0030] Figure 1 A schematic diagram of the structure of an aluminum powder processing and screening equipment. Figure 1 ;

[0031] Figure 2 A schematic diagram of the structure of an aluminum powder processing and screening equipment. Figure 2 ;

[0032] Figure 3 A schematic diagram of the structure of an aluminum powder processing and screening equipment. Figure 3 ;

[0033] Figure 4 for Figure 1 Enlarged view of region A in the middle;

[0034] Figure 5 for Figure 1 Enlarged view of region B in the middle;

[0035] Figure 6 for Figure 1Enlarged diagram of region C in the middle;

[0036] Figure 7 for Figure 2 Enlarged schematic diagram of region D in the middle;

[0037] In the diagram: 10-Base plate, 101-First support plate, 102-Second support plate, 20-Screening box, 201-First screen, 202-Second screen, 203-Telescopic rod, 30-First drive mechanism, 301-Ring plate, 302-Drive rod, 303-Eccentric rod, 304-Turntable, 305-Slide groove, 306-Motor, 40-Second drive mechanism, 401-Piston air supply assembly, 4011-Piston rod, 4012-First piston cylinder, 4013-Rotary joint, 4014-Air supply pipe, 4015-Air inlet pipe, 4 016-Gas supply pipe, 4017-Key, 402-One-way gear rack assembly, 4021-Supporting vertical rod, 4022-Supporting horizontal rod, 4023-Connecting rod, 4024-Second piston cylinder, 4025-Gear, 4026-Piston plate, 4027-Exhaust port, 4028-First elastic element, 4029-Helical gear, 4030-Second elastic element, 403-Exhaust assembly, 4031-First magnet, 4032-Slider, 4033-Guide rod, 4034-Sealing block, 4035-Second magnet, 4036-Third magnet. Detailed Implementation

[0038] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Please see Figure 1 , Figure 2 as well as Figure 3 This embodiment provides an aluminum powder processing and screening device, including a base plate 10, a screening box 20, a first driving mechanism 30, and a second driving mechanism 40. The screening box 20 is movably disposed above the base plate 10. A first screen 201 and a second screen 202 are respectively installed on the upper and lower sides of the screening box 20. The first driving mechanism 30 is disposed on the upper part of the base plate 10 and is used to drive the screening box 20 to move horizontally back and forth to screen the aluminum powder. The second driving mechanism 40 is installed on the upper part of the base plate 10 and is used to drive the screening box 20 to rotate intermittently at an angle of 180°, so that the first screen 201 and the second screen 202 are alternately located below the screening box 20.

[0043] Initially, the second screen 202 is positioned below the screening box 20, while the first screen 201 is positioned above it. When aluminum powder needs to be screened, the aluminum powder to be screened can be placed inside the screening box 20, allowing the aluminum powder to act on the upper part of the second screen 202. Subsequently, the first drive mechanism 30 drives the screening box 20 to move horizontally back and forth, thereby causing the first screen 201 and the second screen 202 to move synchronously back and forth. When the second screen 202 moves back and forth, the aluminum powder above it shakes. Smaller aluminum powder particles pass through the second screen 202 and fall downwards, while larger aluminum powder particles remain on the upper part of the second screen 202. After the screening box 20 has moved horizontally back and forth for a predetermined time, the second drive mechanism 40 drives the screening box 20 to rotate 180°, so that the first screen 201 is below the screening box 20, and the second screen 202 is above it. At this time, the remaining aluminum powder inside the screening box 20 and the aluminum powder blocked in the mesh of the second screen 202 fall to the upper part of the first screen 201 under the action of gravity. As the screening box 20 continues to move horizontally back and forth, the aluminum powder that has fallen to the upper part of the first screen 201 continues to shake. The smaller aluminum powder continues to pass through the first screen 201, while the larger aluminum powder continues to remain on the upper part of the first screen 201. After the screening box 20 moves horizontally back and forth again for a predetermined time, the second drive mechanism 40 drives the screening box 20 to rotate 180° again, so that the second screen 202 is below again and the first screen 201 is above again. This cycle repeats, so that the first screen 201 and the second screen 202 are alternately in the lower position of the screening box 20, and thus alternately participate in the screening of aluminum powder, thereby avoiding the phenomenon of aluminum powder blocking the screen and improving the screening effect and screening efficiency of aluminum powder.

[0044] Please see Figure 3 In one embodiment, a first support plate 101 is fixedly installed on the upper part of the base plate 10, and a telescopic rod 203 is fixedly installed at one end of the screening box 20. The end of the telescopic rod 203 away from the screening box 20 is rotatably connected to the first support plate 101.

[0045] When the first drive mechanism 30 drives the screening box 20 to move horizontally and reciprocally, the telescopic rod 203 extends and retracts adaptively. Through the first support plate 101 and the telescopic rod 203, the horizontal reciprocating movement of the screening box 20 can be supported and guided to ensure the stability of the screening box 20 during movement.

[0046] Please see Figure 1In one embodiment, the second drive mechanism 40 includes a piston air supply assembly 401, a one-way gear rack assembly 402, and an exhaust assembly 403. The one-way gear rack assembly 402 is disposed on the upper part of the base plate 10. One end of the piston air supply assembly 401 is connected to the screening box 20, and the other end is connected to the one-way gear rack assembly 402. When the screening box 20 moves horizontally reciprocating, the piston air supply assembly 401 supplies air to the one-way gear rack assembly 402 to drive the one-way gear rack assembly 402 to move upward. The exhaust assembly 403 is disposed inside the one-way gear rack assembly 402. When the one-way gear rack assembly 402 moves upward to a predetermined height, the exhaust assembly 403 discharges the air supplied to the one-way gear rack assembly 402, causing the one-way gear rack assembly 402 to move downward, thereby driving the screening box 20 to rotate 180°.

[0047] When the first drive mechanism 30 drives the screening box 20 to move horizontally reciprocally, the piston air supply assembly 401 supplies air to the one-way gear rack assembly 402, thereby driving the one-way gear rack assembly 402 to move upward. After the screening box 20 has moved horizontally reciprocally for a predetermined time, the one-way gear rack assembly 402 moves upward to a predetermined height. At this time, the exhaust assembly 403 discharges the air supplied to the one-way gear rack assembly 402, causing the one-way gear rack assembly 402 to move downward. When the one-way gear rack assembly 402 moves downward, it drives the screening box 20 to rotate 180°, realizing the interchange of the upper and lower positions of the first screen 201 and the second screen 202.

[0048] Please see Figure 1 , Figure 2 , Figure 3 , Figure 6 as well as Figure 7In one embodiment, the piston air supply assembly 401 includes a piston rod 4011, a first piston cylinder 4012, and an air supply pipe 4014. The air supply pipe 4014 is fixedly disposed on the upper part of the base plate 10. One end of the piston rod 4011 is fixedly connected to the screening box 20, and the other end extends into the first piston cylinder 4012 and is in telescopic cooperation with the first piston cylinder 4012. The end of the first piston cylinder 4012 away from the piston rod 4011 is connected to and communicates with the upper end of the air supply pipe 4014. An air inlet pipe 4015 is provided on the side wall of the air supply pipe 4014, and a one-way valve (not shown in the figure) is provided inside the air inlet pipe 4015. The one-way gear rack assembly 402 includes a supporting vertical rod 4021, a supporting horizontal rod 4022, a connecting rod 4023, a second piston cylinder 4024, and a gear 4025. The second piston cylinder 4024 is fixedly disposed on the upper part of the base plate 10. The second piston cylinder 4024 is connected to the air supply pipe 4014 through the air delivery pipe 4016. The gear 4025 is fixedly disposed outside the first piston cylinder 4012. The support vertical rod 4021 is disposed on one side of the gear 4025 and is vertically distributed. Several helical teeth 4029 are hinged on the side wall of the support vertical rod 4021. One side of each set of helical teeth 4029 is connected to the support vertical rod 4021 through a set of second elastic elements 4030. The bottom of the support vertical rod 4021 is fixedly connected to the support horizontal rod 4022. The bottom of the support horizontal rod 4022 is fixedly connected to the connecting rod 4023. The lower end of the connecting rod 4023 extends into the interior of the second piston cylinder 4024 and is fixedly connected to a piston plate 4026.

[0049] When the first drive mechanism 30 drives the screening box 20 to move horizontally reciprocally, the screening box 20 drives the piston rod 4011 to extend and retract relative to the first piston cylinder 4012. When the piston rod 4011 moves into the first piston cylinder 4012, it pressurizes the air inside the first piston cylinder 4012 through the air supply pipe 4014 and the air delivery pipe 4016 to the inside of the second piston cylinder 4024, thereby pushing the piston plate 4026 to move upward along the inside of the second piston cylinder 4024. When the piston rod 4011 moves outward from the first piston cylinder 4012, it draws outside air into the first piston cylinder 4012 through the air inlet pipe 4015 and the air supply pipe 4014, thus replenishing the air. When the piston plate 4026 moves upward along the inside of the second piston cylinder 4024, it drives the connecting rod 4023, the support crossbar 4022, and the support vertical rod 4021 to move upward. When the support vertical rod 4021 moves upward, it drives several helical teeth 4029 to move upward. At this time, several helical teeth 4029 move upward. The toothed plates 4029 are pushed by the gears 4025 and deflect sequentially toward the support rod 4021. Several helical toothed plates 4029 cannot mesh with the gears 4025, preventing the screening box 20 from rotating. When the piston plate 4026, connecting rod 4023, support crossbar 4022, and support rod 4021 move upwards to a predetermined height, the exhaust assembly 403 discharges the air from inside the second piston cylinder 4024, thus discharging the air from the piston plate 4026, connecting rod 4023, and support crossbar. 4022 and the supporting vertical rod 4021 move downward under the action of gravity. When the supporting vertical rod 4021 moves downward, it drives several helical toothed pieces 4029 to move downward. At this time, several helical toothed pieces 4029 mesh with gear 4025, thereby driving gear 4025 to rotate 180°. Gear 4025 drives the first piston cylinder 4012, piston rod 4011 and screening box 20 to rotate 180°, thereby realizing the up-down swap of the first screen 201 and the second screen 202.

[0050] Please see Figure 1 as well as Figure 2 In one embodiment, a key 4017 is fixedly provided on the outer wall of the piston rod 4011 along the length direction, and a keyway (not shown in the figure) that cooperates with the key 4017 is opened on the inner wall of the first piston cylinder 4012 along the length direction. The end of the first piston cylinder 4012 away from the piston rod 4011 is connected to the upper end of the air supply pipe 4014 through a rotary joint 4013.

[0051] When the first drive mechanism 30 drives the screening box 20 to move horizontally and reciprocally, the piston rod 4011 moves telescopically relative to the first piston cylinder 4012, and the key 4017 slides adaptively along the keyway. When the support vertical rod 4021 drives several helical teeth 4029 to move downward so that the several helical teeth 4029 mesh with the gear 4025, one end of the first piston cylinder 4012 rotates 180° relative to the rotary joint 4013, and the other end drives the piston rod 4011 to rotate 180° through the cooperation of the keyway and the key 4017. The piston rod 4011 drives the screening box 20 to rotate 180°, realizing the up-and-down exchange of the first screen 201 and the second screen 202.

[0052] Please see Figure 6 In one embodiment, the bottom of the piston plate 4026 is also connected to the inner bottom wall of the second piston cylinder 4024 via a first elastic member 4028, the first elastic member 4028 being used to provide elastic tension to the piston plate 4026.

[0053] When the piston plate 4026 moves upward along the inside of the second piston cylinder 4024, the first elastic element 4028 is stretched. When the exhaust assembly 403 discharges the air inside the second piston cylinder 4024, the first elastic element 4028 can pull the piston plate 4026, causing the piston plate 4026, connecting rod 4023, support cross rod 4022 and support vertical rod 4021 to move downward quickly, thereby driving the gear 4025 to rotate quickly through several helical teeth 4029, thereby driving the first piston cylinder 4012, piston rod 4011 and screening box 20 to rotate quickly.

[0054] Please see Figure 3 , Figure 5 as well as Figure 6 In one embodiment, an exhaust pipe is provided above the side wall of the second piston cylinder 4024, and an exhaust port 4027 is provided on the piston plate 4026, which passes through the upper and lower ends of the piston plate 4026. The exhaust assembly 403 includes a first magnet 4031, a sealing block 4034, a second magnet 4035, and a third magnet 4036. The sealing block 4034 is slidably disposed on the upper part of the piston plate 4026 to seal the exhaust port 4027. The second magnet 4035 is fixedly disposed on the side wall of the sealing block 4034. The first magnet 4031 and the third magnet 4036 are embedded in the inner wall of the second piston cylinder 4024. The first magnet 4031 is located below the third magnet 4036. The first magnet 4031 and the second magnet 4035 repel each other, and the third magnet 4036 and the second magnet 4035 attract each other.

[0055] When the piston rod 4011 pressurizes air into the second piston cylinder 4024, the sealing block 4034 acts on the upper part of the exhaust port 4027 to seal the exhaust port 4027. The air pressed into the second piston cylinder 4024 pushes the piston plate 4026 upward, thereby causing the sealing block 4034 and the second magnet 4035 to move upward. When the second magnet 4035 moves to the side of the first magnet 4031, the first magnet 4031 will exert a magnetic repulsive force on the second magnet 4035. However, the sealing block 4035 cannot slide along the upper part of the piston plate 4026 because it acts on the side wall of the connecting rod 4023, and the sealing block 4026 maintains a sealing state for the exhaust port 4027. When the piston plate 4026 moves to a predetermined height, the second magnet 4035 moves to the side of the third magnet 4036. At this time, the third magnet 4036 applies a magnetic attraction force to the second magnet 4035, thereby attracting the sealing block 4034 along the piston plate 4026. The upper part of the stopper plate 4026 slides to expose the exhaust port 4027. At this time, the first elastic element 4028 pulls the piston plate 4026, which in turn drives the piston plate 4026, connecting rod 4023, support crossbar 4022, support vertical bar 4021, several helical teeth 4029, sealing block 4034 and second magnet 4035 to move down. The air located below the piston block 4026 passes through the exhaust port 4027 and flows to the top of the piston plate 4026, and then through the exhaust pipe. As the exhaust is discharged, several helical teeth 4029 move down and mesh with gear 4025, thereby driving the first piston cylinder 4012, piston rod 4011 and screening box 20 to rotate 180°. When the second magnet 4035 moves down and moves to the side of the first magnet 4031 again, the first magnet 4031 and the second magnet 4035 repel each other, thereby pushing the sealing block 4034 to slide in the opposite direction along the upper part of the piston plate 4026, thereby resealing the exposed exhaust port 4027.

[0056] Please see Figure 6 In one embodiment, the exhaust assembly 403 further includes a slider 4032 and a guide rod 4033. The guide rod 4033 is fixedly disposed on the side wall of the connecting rod 4023, the slider 4032 is movably sleeved on the outside of the guide rod 4033, and the slider 4032 is fixedly installed on the upper part of the sealing block 4034.

[0057] The sliding cooperation between the slider 4032 and the guide rod 4033 provides guidance for the sliding of the sealing block 4034 along the upper part of the piston plate 4026, so as to ensure the opening of the exhaust port 4027 and the sealing effect.

[0058] In one embodiment, the first elastic element 4028 and the second elastic element 4030 can be springs or metal sheets, and there is no limitation here.

[0059] Please see Figure 4In one embodiment, a second support plate 102 is fixedly installed on the upper part of the base plate 10. The first driving mechanism 30 includes a ring plate 301, a driving rod 302, an eccentric rod 303, a turntable 304, and a motor 306. The motor 306 is fixedly installed on the side wall of the second support plate 102. There are two sets of turntables 304, and the two sets of turntables 304 are fixedly connected by the eccentric rod 303. One set of turntables 304 is installed at the output end of the motor 306. The ring plate 301 is sleeved on the outside of the piston rod 4011 and rotates with the piston rod 4011 through a bearing (not shown in the figure). One end of the driving rod 302 is fixedly connected to the ring plate 301, and the other end extends between the two sets of turntables 304. A sliding groove 305 is opened on the driving rod 302, and the eccentric rod 303 passes through the sliding groove 305 and moves with the driving rod 302.

[0060] When aluminum powder is being screened, the motor 306 is started. The motor 306 drives the two sets of turntables 304 to rotate, which in turn drives the eccentric rod 303 to move in a circular motion. When the eccentric rod 304 moves in a circular motion, it slides along the slide groove 305 and pushes the drive rod 302. This causes the drive rod 302 and the ring plate 301 to drive the piston rod 4011 to move in and out relative to the first piston cylinder 4012. When the piston rod 4011 moves in and out, it drives the screening box 20 to move horizontally back and forth to shake and screen the aluminum powder. At the same time, it continuously pushes the air inside the first piston cylinder 4012 to the inside of the second piston cylinder 4024 through the air supply pipe 4014 and the air delivery pipe 4016, so that the piston plate 4026 and the support vertical rod 4021 move upward continuously.

[0061] In one embodiment, both the first screen 201 and the second screen 202 are detachably connected to the screening box 20. Before screening the aluminum powder, the first screen 201 can be removed from the upper part of the screening box 20. Then, the aluminum powder to be screened is placed inside the screening box 20 and the aluminum powder acts on the upper part of the second screen 202. Subsequently, the first screen 201 is placed on the upper part of the screening box 20 for screening. After the aluminum powder screening is completed, the first screen 201 or the second screen 202 located below the screening box 20 can be removed to clean the aluminum powder with larger particle size inside the screening box 20.

[0062] The detachable connection between the first screen 201 and the second screen 202 and the screening box 20 can be a hinge or an integral disassembly, which is not limited here. After the first screen 201 and the second screen 202 are covered on the screening box 20, they can be locked with screws or buckles.

[0063] In this embodiment of the invention, initially, the second screen 202 is positioned below the screening box 20, while the first screen 201 is positioned above the screening box 20. When aluminum powder needs to be screened, the aluminum powder to be screened can be placed inside the screening box 20, so that the aluminum powder acts on the upper part of the second screen 202. Subsequently, the first driving mechanism 30 drives the screening box 20 to move horizontally back and forth, thereby driving the first screen 201 and the second screen 202 to move back and forth synchronously. When the second screen 202 moves back and forth, the aluminum powder on its upper part... The powder shakes, and smaller aluminum powder particles pass through the second screen 202 and fall downwards, while larger aluminum powder particles remain on the upper part of the second screen 202. After the screening box 20 has moved horizontally back and forth for a predetermined time, the second drive mechanism 40 drives the screening box 20 to rotate 180°, so that the first screen 201 is below the screening box 20 and the second screen 202 is above the screening box 20. At this time, the remaining aluminum powder inside the screening box 20 and the aluminum powder blocked in the mesh of the second screen 202 are removed by gravity. The aluminum powder falls onto the upper part of the first screen 201. As the screening box 20 continues to move horizontally back and forth, the aluminum powder falling onto the upper part of the first screen 201 continues to sway. Smaller aluminum powder particles continue to pass through the first screen 201, while larger aluminum powder particles remain on the upper part of the first screen 201. After the screening box 20 has moved horizontally back and forth for a predetermined time, the second drive mechanism 40 drives the screening box 20 to rotate 180° again, so that the second screen 201 is once again at the bottom and the first screen 202 is once again at the top. By repeating this cycle, the first screen 201 and the second screen 202 can be alternately positioned below the screening box 20, thus alternating their participation in the aluminum powder screening operation. This avoids the phenomenon of aluminum powder clogging the screens, improves the screening effect and efficiency of aluminum powder. Compared with the existing technology, by constantly changing the upper and lower positions of the two sets of screens to alternately screen the aluminum powder, the phenomenon of aluminum powder clogging the screens can be effectively avoided, while ensuring the shaking effect of the aluminum powder, thus improving the screening effect and efficiency of aluminum powder.

[0064] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A screening device for aluminum powder processing, characterized in that, It includes a base plate, a screening box, a first drive mechanism, and a second drive mechanism. The screening box is movably mounted above the base plate, and a first screen and a second screen are respectively installed on the upper and lower sides of the screening box. The first drive mechanism is located on the upper part of the base plate and is used to drive the screening box to move horizontally and reciprocally to screen aluminum powder. The second drive mechanism is mounted on the upper part of the base plate and is used to drive the screening box to rotate intermittently at an angle of 180°, so that the first screen and the second screen are alternately located below the screening box. The second drive mechanism includes a piston air supply assembly, a one-way gear and rack assembly, and an exhaust assembly. The one-way gear and rack assembly is disposed on the upper part of the base plate. One end of the piston air supply assembly is connected to the screening box, and the other end is connected to the one-way gear and rack assembly. When the screening box moves horizontally reciprocating, the piston air supply assembly supplies air to the one-way gear and rack assembly to drive the one-way gear and rack assembly to move upward. The exhaust assembly is located inside the one-way gear and rack assembly. When the one-way gear and rack assembly moves upward to a predetermined height, the exhaust assembly is used to discharge the air supplied to the one-way gear and rack assembly, causing the one-way gear and rack assembly to move downward, thereby driving the screening box to rotate 180°. The piston air supply assembly includes a piston rod, a first piston cylinder, and an air supply pipe. The air supply pipe is fixedly installed on the upper part of the base plate. One end of the piston rod is fixedly connected to the screening box, and the other end extends into the first piston cylinder and telescopically engages with the first piston cylinder. The end of the first piston cylinder away from the piston rod is connected to and communicates with the upper end of the air supply pipe. An air inlet pipe is provided on the side wall of the air supply pipe, and a one-way valve is provided inside the air inlet pipe. The one-way gear rack assembly includes a supporting vertical rod, a supporting horizontal rod, a connecting rod, a second piston cylinder, and a gear. The second piston cylinder is fixedly mounted on the upper part of the base plate. The second piston cylinder is connected to the air supply pipe through an air delivery pipe. The gear is fixedly mounted outside the first piston cylinder. The support vertical rod is mounted on one side of the gear and is vertically distributed. Several helical teeth are hinged on the side wall of the support vertical rod. Each set of helical teeth is connected to the support vertical rod on one side through a set of second elastic elements. The bottom of the support vertical rod is fixedly connected to the support horizontal rod. The bottom of the support horizontal rod is fixedly connected to the connecting rod. The lower end of the connecting rod extends into the interior of the second piston cylinder and is fixedly connected to a piston plate.

2. The aluminum powder processing and screening equipment according to claim 1, characterized in that, A first support plate is fixedly installed on the upper part of the base plate, and a telescopic rod is fixedly installed at one end of the screening box. The end of the telescopic rod away from the screening box is rotatably connected to the first support plate.

3. The aluminum powder processing and screening equipment according to claim 1, characterized in that, A key is fixedly provided on the outer wall of the piston rod along the length direction, and a keyway that matches the key is opened on the inner wall of the first piston cylinder along the length direction. The end of the first piston cylinder away from the piston rod is connected to the upper end of the air supply pipe through a rotary joint.

4. The aluminum powder processing and screening equipment according to claim 1, characterized in that, The bottom of the piston plate is also connected to the inner bottom wall of the second piston cylinder through a first elastic element, which is used to provide elastic tension to the piston plate.

5. The aluminum powder processing and screening equipment according to claim 1, characterized in that, An exhaust pipe is provided above the side wall of the second piston cylinder, and an exhaust port is provided on the piston plate, which extends through both the upper and lower ends of the piston plate. The exhaust assembly includes a first magnet, a sealing block, a second magnet, and a third magnet. The sealing block is slidably disposed on the upper part of the piston plate to seal the exhaust port. The second magnet is fixedly disposed on the side wall of the sealing block. The first magnet and the third magnet are embedded in the inner wall of the second piston cylinder. The first magnet is located below the third magnet. The first magnet and the second magnet repel each other, and the third magnet and the second magnet attract each other.

6. The aluminum powder processing and screening equipment according to claim 5, characterized in that, The exhaust assembly also includes a slider and a guide rod. The guide rod is fixedly mounted on the side wall of the connecting rod, and the slider is movably sleeved outside the guide rod. The slider is fixedly installed on the upper part of the sealing block.

7. The aluminum powder processing and screening equipment according to claim 4, characterized in that, The first elastic element and the second elastic element are springs or metal sheets.

8. The aluminum powder processing and screening equipment according to claim 1, characterized in that, A second support plate is fixedly installed on the upper part of the base plate. The first driving mechanism includes a ring plate, a driving rod, an eccentric rod, a turntable, and a motor. The motor is fixedly mounted on the side wall of the second support plate. There are two sets of turntables, which are fixedly connected by the eccentric rod. One set of turntables is installed at the output end of the motor. The ring plate is sleeved on the outside of the piston rod and rotates with the piston rod through a bearing. One end of the drive rod is fixedly connected to the ring plate, and the other end extends between the two sets of turntables. A sliding groove is provided on the drive rod, and the eccentric rod passes through the sliding groove and moves with the drive rod.

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