Powder screening system for aluminum-antimony alloy sintering and using method of powder screening system

Abstract

The invention discloses a powder screening system for aluminum-antimony alloy sintering and a using method of the powder screening system, and relates to the technical field of metal smelting.The powder screening system for aluminum-antimony alloy sintering comprises a platform and a feeding pipe, the upper end of the platform is fixedly connected with the feeding pipe, and the lower end of the feeding pipe penetrates through the platform; the lower end of the platform is fixedly connected with a frame body, a turnover device is arranged at the lower end of the frame body, through cooperation of a dust raising prevention structure and a feeding pipe, after aluminum-antimony metal powder enters the feeding pipe, baffles on the two sides are not pressed any more, four second springs are released, the baffles on the two sides can return to the original positions under pushing of the second springs, and then the aluminum-antimony metal powder is fed into the feeding pipe. After the baffles on the two sides are closed, the situation that the aluminum-antimony metal powder falls too fast to cause dust raising and the like can be prevented, the feeding pipe can be blocked, most of the dust raising and the like are blocked in the feeding pipe during feeding, and harm of the dust raising to operators is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metal smelting, and in particular to a powder screening system for sintering aluminum-antimony alloy and a use method thereof. Background Art

[0002] Aluminum sintering is the process of heating aluminum powder to a temperature below its melting point to bond the particles together to form a solid structure. Antimony is mainly used as a modifier in cast aluminum alloys and is rarely used in deformed aluminum alloys. It only replaces bismuth in Al-Mg deformed aluminum alloys to prevent sodium embrittlement. Antimony is added to certain Al-Zn-Mg-Cu alloys to improve the performance of hot pressing and cold pressing processes.

[0003] Firstly, during the screening of the existing aluminum antimony metal sintering process, after the metal powder is added into the screening equipment, the metal powder is prone to splashing, and the flying metal dust will cause harm to the health of the operator after the operator inhales it.

[0004] Secondly, when screening is performed in the existing aluminum antimony metal sintering process, it is not convenient to quickly separate and remove the screened metal powder, which makes the existing equipment inconvenient when screening the metal powder, affecting the screening efficiency of the existing equipment.

[0005] Finally, when screening is performed in the existing aluminum-antimony metal sintering process, it is not convenient to repair and replace the screen in the existing equipment while it is in use. The vibration structure and the screen in the existing equipment are mostly integrated, which makes replacement inconvenient, resulting in a long time required for maintenance of the existing equipment. Summary of the invention

[0006] The purpose of the present invention is to solve the problems that the existing equipment is easy to cause harm to the body, has low screening efficiency and is inconvenient to repair, and to propose a powder screening system for sintering aluminum-antimony alloy and a method of using the same.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A powder screening system for sintering aluminum-antimony alloy is designed, including a platform and a feeding pipe, the upper end of the platform is fixedly connected to the feeding pipe, the lower end of the feeding pipe passes through the platform, the lower end of the platform is fixedly connected to a frame, the lower end of the frame is provided with a flip device, the platform is slidably connected to a slide plate through a slideway opened at the upper end, the upper end of the slide plate is fixedly connected to a vertical plate, the outer wall of the vertical plate is provided with a screening device, and the inside of the feeding pipe is provided with a dust prevention structure.

[0009] Preferably, the screening device comprises a horizontal plate, a frame, a vertical rod, a first roller, a circular ring, a sliding rod, a push plate, a motor 1 and a rotating rod;

[0010] The motor 1 is fixedly connected to the vertical plate through a motor frame, the output shaft of the motor 1 is fixedly connected to one end of the rotating rod, the upper end of the rotating rod is rotatably connected to the first roller through a bearing, the outer wall of the first roller fits with the inner wall of the frame, one end of the frame is fixedly connected to the horizontal plate, the lower end of the horizontal plate is symmetrically fixedly connected to the vertical rod, the lower ends of the vertical rods on both sides are fixedly connected to the push plates, the outer walls of the vertical rods are fixedly connected to circular rings, the outer walls of the circular rings on both sides are fixedly connected to sliding rods, and the outer walls of the sliding rods are slidably connected to the vertical plates.

[0011] Preferably, the upper end of the platform is fixedly connected to a first bracket, and the left end of the first bracket is fixedly connected to a first cylinder.

[0012] Preferably, the flipping device comprises a sleeve, a first spring, a support plate, a second motor, a round block and a round rod;

[0013] The upper end of the support plate is fitted with the frame, and the left end of the support plate is symmetrically fixedly connected with a round rod, one end of the two round rods is fixedly connected with a round block, the round block and the support plate are respectively fixedly connected with the two ends of the two first springs, the outer walls of the round rods on both sides are respectively fitted with the inner walls of the two sleeves, the upper ends of the sleeves are fixedly connected with the output shaft of the second motor, the second motor is fixedly connected to the platform through the motor frame, and the output shaft of the second motor is movably connected to the frame through a bearing.

[0014] Preferably, a screen is fixedly connected to the inner wall of the support plate, an arc plate is fixedly connected to the right end of the support plate, and the lower end of the arc plate is tightly abutted against the second roller.

[0015] Preferably, the rotating part of the second roller is rotatably connected to the roller frame through a bearing, the upper end of the roller frame is fixedly connected to the telescopic end of the second cylinder, the second cylinder is fixedly connected to the second bracket, the lower end of the second bracket is fixedly connected to the platform, the right end of the platform is fixedly connected to a support rod, and the outer wall of the support rod is slidably connected to the roller frame.

[0016] Preferably, the outer wall of the vertical plate is fixedly connected to the telescopic end of the first cylinder, the lower end of the platform is fixedly connected to a plurality of supporting legs, and a conveyor belt is provided at the lower end of the platform.

[0017] Preferably, the dust prevention structure comprises a baffle, a support arm, a round sleeve, a second spring, a straight rod and an arc block;

[0018] The baffles on both sides are movably connected to the feeding tube through bearings, one ends of the baffles on both sides are fitted together, and the lower ends of the baffles are symmetrically fixedly connected with arc blocks, and the arc blocks are movably connected to multiple support arms through pins, and the lower ends of the multiple support arms are movably connected to multiple circular sleeves through bearings, and the inner walls of the circular sleeves are slidably connected to multiple straight rods, and the circular sleeves and the inner walls of the feeding tube are fixedly connected to the two ends of multiple second springs, and the outer walls of the baffles on both sides are fitted with the inner wall of the feeding tube.

[0019] Preferably, a method for using a powder screening system for sintering aluminum-antimony alloy comprises first placing the powdered metal into a container, and simultaneously replacing the screen inside the support plate with different mesh sizes according to the size of the aluminum-antimony metal powder to be screened.

[0020] S1: Feeding process: The operator carries the container filled with aluminum antimony metal powder to the upper end of the feeding tube, tilts the upper end of the container downward, and pushes the middle position of the baffles on both sides. Under the action of gravity, the aluminum antimony metal powder inside the container can flow to the middle position of the baffles on both sides. After the baffles on both sides are subjected to pressure, they will drive the support arms on both sides to move synchronously through the arc blocks on both sides. The lower ends of the support arms on both sides will drive the circular sleeves to slide downward on the surface of the straight rod, so that the circular sleeves compress the second springs, so that the contacting ends of the baffles on both sides can tilt downward and rotate with the other end of the baffle as the center. After the baffles are tilted, the aluminum antimony metal powder on its surface can enter the interior of the feeding tube. When the aluminum antimony metal powder enters the interior of the feeding tube, the baffles on both sides are no longer subjected to pressure, so that the four second springs are released. Under the push of the second springs, the baffles on both sides can return to their original positions. After the baffles on both sides are closed, the aluminum antimony metal powder will be prevented from falling too quickly to cause dust and the like.

[0021] S2: Screening process: Aluminum antimony metal powder falls onto the surface of the screen through the feeding pipe, the first cylinder is controlled to work, the telescopic end of the first cylinder is shortened to drive the vertical plate to move synchronously, the vertical plate drives the slide plate to move synchronously, the slide plate drives the push plate to fit with the round blocks on both sides, the motor one is controlled to work, the output shaft of the motor one rotates to drive the rotating rod to rotate synchronously, the rotating rod drives the first roller to perform synchronous circular motion, the first roller moves inside the frame, the first roller will push the frame to reciprocate while moving, the frame drives the vertical rods on both sides to move synchronously through the horizontal plate, the vertical rods on both sides can drive the sliding rods on both sides through the circular rings on both sides while reciprocating. It slides inside the vertical plate, and the vertical rod can drive the push plate to move synchronously at the same time, so that the push plate can push the round blocks on both sides to move synchronously, and the round blocks on both sides can drive the support plate to move synchronously through the round rods on both sides. While the round blocks on both sides are moving, the first springs on both sides can be continuously compressed and released, so that the support plate and the screen plate can shake back and forth quickly to achieve shaking screening of aluminum antimony metal powder. While the support plate reciprocates, the arc plate can drive the first roller to rotate back and forth. Smaller metal particles will fall through the mesh of the screen onto the surface of the conveyor belt and be transported to the next sintering processing location. Larger particles will be retained at the upper end of the screen.

[0022] S3: Cleaning process: when one screening is completed, start the telescopic end of the first cylinder to extend and drive the vertical plate to move, so that the push plate is separated from the round blocks on both sides, control the second cylinder to work, so that the telescopic end of the second cylinder extends to drive the roller frame to move synchronously, so that the roller frame can drive the second roller to separate from the arc plate, control the second motor to work, so that the output shaft of the second motor rotates to drive the sleeves on both sides to rotate, and the sleeves on both sides drive the support plate to rotate synchronously through the round rods on both sides, so that the support plate and the screen rotate and tilt, so that the large-particle aluminum antimony metal powder on the surface of the screen is poured out, and the operator can collect it. After the cleaning and collection is completed, according to the above reverse operation, the second motor drives the support plate to rotate until it fits with the lower end of the frame, and at the same time, the surface of the second roller is pressed against the lower end of the arc plate again, and the second motor is stopped to carry out the next processing.

[0023] The present invention provides a powder screening system for aluminum-antimony alloy sintering and a method for using the same, which has the beneficial effects of: through the cooperation of the dust-proof structure and the feeding pipe, the aluminum-antimony metal powder inside the container can flow to the middle position of the baffles on both sides; after the baffles on both sides are subjected to pressure, the arc blocks on both sides drive the support arms on both sides to move synchronously, so that the contacting ends of the baffles on both sides can tilt downward and rotate around the other end of the baffle; after the baffles are tilted, the aluminum-antimony metal powder on the surface thereof can enter the interior of the feeding pipe; when the aluminum-antimony metal powder enters the interior of the feeding pipe, the baffles on both sides are no longer subjected to pressure, so that the four second springs are released, and the baffles on both sides can be returned to their original positions under the push of the second springs; after the baffles on both sides are closed, the aluminum-antimony metal powder can be prevented from falling too quickly to cause dust and the like; and by blocking the feeding pipe, most of the dust and the like generated during feeding of the present invention are blocked inside the feeding pipe, thereby reducing the harm of dust to operators.

[0024] Through the cooperation of the flipping device and the screen, the motor 2 is controlled to work, so that the output shaft of the motor 2 rotates to drive the sleeves on both sides to rotate, and the sleeves on both sides drive the support plates to rotate synchronously through the round rods on both sides, so that the support plate and the screen rotate and tilt, so that the large-particle aluminum antimony metal powder on the surface of the screen is poured out, and the operator can collect it. After cleaning and collecting, according to the above-mentioned reverse operation, the motor 2 drives the support plate to rotate until it is in contact with the lower end of the frame, and at the same time, the surface of the second roller is pressed against the lower end of the arc plate again, and the motor 2 is stopped to carry out the next processing. By tilting the screen, the present invention is more convenient for separating and taking materials after screening, thereby improving the screening efficiency.

[0025] Through the cooperation of the screening device and the flipping device, the telescopic end of the first cylinder is shortened to drive the vertical plate to move synchronously, so that the vertical plate drives the slide plate to move synchronously, and the slide plate drives the push plate to fit with the round blocks on both sides, and the motor one is controlled to work, so that the output shaft of the motor one rotates to drive the rotating rod to rotate synchronously, so that the first roller will push the frame to reciprocate while moving, so that the push plate can push the round blocks on both sides to move synchronously, so that the round blocks on both sides can drive the support plate to move synchronously through the round rods on both sides, and while the round blocks on both sides are moving, the first springs on both sides can be continuously compressed and released, so that the support plate and the screen plate can shake back and forth quickly, so as to realize the shaking screening of aluminum antimony metal powder, and by separating the vibrating structure and the screen, the device can be more convenient to inspect the screen and shorten the inspection time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the appearance structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 Schematic diagram of the top view;

[0028] Figure 3 For the present invention Figure 1 Schematic diagram of the rear side looking up;

[0029] Figure 4 For the present invention Figure 1 Schematic diagram of the upward-looking state;

[0030] Figure 5 For the present invention Figure 1 Schematic diagram of the middle screening device;

[0031] Figure 6 For the present invention Figure 1 Schematic diagram of the top view of the middle screening device;

[0032] Figure 7 For the present invention Figure 1 Schematic diagram of the top view of the middle feeding pipe;

[0033] Figure 8 For the present invention Figure 1 Schematic diagram of the feeding pipe when viewed from above.

[0034] In the figure: 1, platform, 2, dust prevention structure, 201, baffle, 202, support arm, 203, round sleeve, 204, second spring, 205, straight rod, 206, arc block, 3, feeding pipe, 4, second bracket, 5, second cylinder, 6, second roller, 7, arc plate, 8, screening device, 801, horizontal plate, 802, frame, 803, vertical rod, 804, first roller, 805, ring, 806, slide Rod, 807, push plate, 808, motor one, 809, rotating rod, 9, turning device, 901, sleeve, 902, first spring, 903, support plate, 904, motor two, 905, round block, 906, round rod, 10, roller frame, 11, support rod, 12, conveyor belt, 13, vertical board, 14, slide plate, 15, support leg, 16, screen, 17, first bracket, 18, first cylinder, 19, frame. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings:

[0036] See attached Figure 1-8 In the present embodiment, a powder screening system for sintering aluminum-antimony alloy includes a platform 1 and a feeding pipe 3. The upper end of the platform 1 is fixedly connected to the feeding pipe 3, the lower end of the feeding pipe 3 passes through the platform 1, the lower end of the platform 1 is fixedly connected to a frame 19, the lower end of the frame 19 is provided with a flipping device 9, the platform 1 is slidably connected to a slide plate 14 through a slideway opened at the upper end, the upper end of the slide plate 14 is fixedly connected to a vertical plate 13, the outer wall of the vertical plate 13 is provided with a screening device 8, and the interior of the feeding pipe 3 is provided with a dust prevention structure 2.

[0037] The screening device 8 includes a horizontal plate 801, a frame 802, a vertical rod 803, a first roller 804, a ring 805, a slide bar 806, a push plate 807, a motor 808 and a rotating rod 809;

[0038] Motor 808 is fixedly connected to the vertical plate 13 through a motor frame, and the output shaft of motor 808 is fixedly connected to one end of a rotating rod 809. Motor 808 is a servo motor. Motor 808 can be determined according to actual needs to meet working needs. The upper end of the rotating rod 809 is rotatably connected to the first roller 804 through a bearing, and the outer wall of the first roller 804 fits the inner wall of the frame 802. One end of the frame 802 is fixedly connected to the horizontal plate 801, and the lower end of the horizontal plate 801 is symmetrically fixedly connected to the vertical rod 803, and the lower ends of the vertical rods 803 on both sides are fixedly connected to the push plate 807, and the outer walls of the vertical rods 803 are fixedly connected to the rings 805, and the outer walls of the rings 805 on both sides are fixedly connected to the sliding rod 806, and the outer walls of the sliding rod 806 are slidably connected to the vertical plate 13.

[0039] Through the cooperation of the screening device 8 and the turning device 9, the telescopic end of the first cylinder 18 is shortened to drive the vertical plate 13 to move synchronously, so that the vertical plate 13 drives the slide plate 14 to move synchronously, and the slide plate 14 drives the push plate 807 to fit with the round blocks 905 on both sides, and the motor 808 is controlled to work, so that the output shaft of the motor 808 rotates to drive the rotating rod 809 to rotate synchronously, so that the first roller 804 will push the frame 802 to reciprocate while moving, so that the push plate 807 can push the round blocks 905 on both sides to move synchronously, so that the round blocks 905 on both sides can drive the support plate 903 to move synchronously through the round rods 906 on both sides, and while the round blocks 905 on both sides are moving, the first springs 902 on both sides can be continuously compressed and released, so that the support plate 903 and the screen plate 16 can shake back and forth quickly, so as to realize the shaking screening of aluminum antimony metal powder, and by separating the vibrating structure and the screen, it is more convenient for the device to repair the screen 16, and the repair time is shortened.

[0040] The upper end of the platform 1 is fixedly connected to a first bracket 17 , and the left end of the first bracket 17 is fixedly connected to a first cylinder 18 . The first cylinder 18 can meet the working requirements according to actual needs.

[0041] The turning device 9 includes a sleeve 901, a first spring 902, a support plate 903, a second motor 904, a round block 905 and a round rod 906;

[0042] The upper end of the support plate 903 fits with the frame 19, and the left end of the support plate 903 is symmetrically fixedly connected with a round rod 906, and one end of the two round rods 906 is fixedly connected with a round block 905, and the round block 905 and the support plate 903 are respectively fixedly connected to the two ends of the two first springs 902, and the elastic coefficient of the first spring 902 can meet the working needs according to actual needs. The outer walls of the round rods 906 on both sides fit with the inner walls of the two sleeves 901 respectively, and the upper ends of the sleeves 901 are fixedly connected to the output shaft of the second motor 904, and the second motor 904 is fixedly connected to the platform 1 through the motor frame. The second motor 904 is a servo motor, and the second motor 904 can meet the working needs according to actual needs. The output shaft of the second motor 904 is movably connected to the frame 19 through a bearing.

[0043] Through the cooperation of the flip device 9 and the screen 16, the motor 2 904 is controlled to work, so that the output shaft of the motor 2 904 rotates to drive the sleeves 901 on both sides to rotate, and the sleeves 901 on both sides drive the support plate 903 to rotate synchronously through the round rods 906 on both sides, so that the support plate 903 and the screen 16 rotate and tilt, so that the large-particle aluminum antimony metal powder on the surface of the screen 16 is poured out, and the operator can collect it. After cleaning and collecting, according to the above-mentioned reverse operation, the motor 2 904 drives the support plate 903 to rotate until it is in contact with the lower end of the frame 19, and at the same time, the surface of the second roller 6 is pressed against the lower end of the arc plate 7 again, and the motor 2 904 is stopped, and the next processing can be carried out. By tilting the screen 16, the present invention is more convenient for separating and taking materials after screening, thereby improving the screening efficiency.

[0044] The inner wall of the support plate 903 is fixedly connected with a screen 16, which can be woven from stainless steel wire. The mesh size of the screen 16 can be selected according to actual needs. The screen 16 can be installed to the inside of the support plate 903 by bolts. The right end of the support plate 903 is fixedly connected with an arc plate 7, and the lower end of the arc plate 7 is tightly pressed against the second roller 6.

[0045] The rotating part of the second roller 6 is rotatably connected to the roller frame 10 through a bearing. The upper end of the roller frame 10 is fixedly connected to the telescopic end of the second cylinder 5. The second cylinder 5 can meet the working needs according to actual needs. The second cylinder 5 is fixedly connected to the second bracket 4. The lower end of the second bracket 4 is fixedly connected to the platform 1. The right end of the platform 1 is fixedly connected to a support rod 11, and the outer wall of the support rod 11 is slidably connected to the roller frame 10.

[0046] The outer wall of the vertical plate 13 is fixedly connected to the telescopic end of the first cylinder 18 , and the lower end of the platform 1 is fixedly connected to a plurality of supporting legs 15 , and a conveyor belt 12 is provided at the lower end of the platform 1 .

[0047] The dust prevention structure 2 includes a baffle 201, a support arm 202, a circular sleeve 203, a second spring 204, a straight rod 205 and an arc block 206;

[0048] The baffles 201 on both sides are movably connected to the feeding tube 3 through bearings, one ends of the baffles 201 on both sides are fitted together, and the lower ends of the baffles 201 are symmetrically fixedly connected with arc blocks 206, and the arc blocks 206 are movably connected to multiple support arms 202 through pins, and the lower ends of the multiple support arms 202 are movably connected to multiple circular sleeves 203 through bearings, and the inner walls of the circular sleeves 203 are respectively slidably connected to multiple straight rods 205, and the inner walls of the circular sleeves 203 and the feeding tube 3 are respectively fixedly connected to the two ends of multiple second springs 204, and the elastic coefficient of the second spring 204 can meet the working needs according to actual needs, and the outer walls of the baffles 201 on both sides are fitted with the inner wall of the feeding tube 3.

[0049] Through the cooperation of the anti-dust structure 2 and the feeding pipe 3, the aluminum antimony metal powder inside the container can flow to the middle position of the baffles 201 on both sides. After the baffles 201 on both sides are subjected to pressure, the arc blocks 206 on both sides will drive the support arms 202 on both sides to move synchronously, so that the contacting ends of the baffles 201 on both sides can be tilted downward, and rotated with the other end of the baffle 201 as the center. After the baffle 201 is tilted, the aluminum antimony metal powder on its surface can enter the interior of the feeding pipe 3. When the aluminum antimony metal powder enters the interior of the feeding pipe 3, the baffles 201 on both sides are no longer subjected to pressure, so that the four second springs 204 are released. Under the push of the second springs 204, the baffles 201 on both sides can return to their original positions. After the baffles 201 on both sides are closed, the aluminum antimony metal powder can be prevented from falling too quickly to cause dust and the like. By blocking the feeding pipe 3, most of the dust and the like during feeding in the present invention are blocked inside the feeding pipe 3, thereby reducing the harm of dust to operators.

[0050] Working principle:

[0051] A method for using a powder screening system for sintering aluminum-antimony alloys includes first placing powdered metal into a container, and simultaneously replacing the screen 16 inside the support plate 903 with different mesh sizes according to the size of the aluminum-antimony metal powder to be screened.

[0052] S1: Feeding process: The operator carries the container filled with aluminum antimony metal powder to the upper end of the feeding pipe 3, tilts the upper end of the container downward, and pushes the middle position of the baffles 201 on both sides. Under the action of gravity, the aluminum antimony metal powder inside the container can flow to the middle position of the baffles 201 on both sides. After the baffles 201 on both sides are under pressure, they will drive the support arms 202 on both sides to move synchronously through the arc blocks 206 on both sides. The lower ends of the support arms 202 on both sides will drive the round sleeve 203 to slide downward on the surface of the straight rod 205, so that the round sleeve 203 presses against the second spring 20 4 is compressed so that the contacting end of the baffles 201 on both sides can tilt downward, and rotate with the other end of the baffle 201 as the center. After the baffle 201 is tilted, the aluminum antimony metal powder on its surface can enter the inside of the feeding tube 3. After the aluminum antimony metal powder enters the inside of the feeding tube 3, the container is taken away, and the baffles 201 on both sides are no longer subjected to pressure, so that the four second springs 204 are released. Under the push of the second springs 204, the baffles 201 on both sides can return to their original positions. After the baffles 201 on both sides are closed, the aluminum antimony metal powder can be prevented from falling too quickly to cause dust and the like.

[0053] S2: Screening process: Aluminum antimony metal powder falls onto the surface of the screen 16 through the feeding pipe 3, the first cylinder 18 is controlled to work, so that the telescopic end of the first cylinder 18 is shortened to drive the vertical plate 13 to move synchronously, so that the vertical plate 13 drives the slide plate 14 to move synchronously, so that the slide plate 14 drives the push plate 807 to fit with the round blocks 905 on both sides, and the motor 808 is controlled to work, so that the output shaft of the motor 808 rotates to drive the rotating rod 809 to rotate synchronously, so that the rotating rod 809 drives the first roller 804 to perform synchronous circular motion, so that the first roller 804 moves inside the frame 802, and the first roller 804 will push the frame 802 to reciprocate while moving, so that the frame 802 drives the vertical rods 803 on both sides to move synchronously through the horizontal plate 801, and the vertical rods 803 on both sides can pass through the circular rings 80 on both sides while reciprocating. 5 drives the slide bars 806 on both sides to slide inside the vertical plate 13, and at the same time the vertical rod 803 can drive the push plate 807 to move synchronously, so that the push plate 807 can push the round blocks 905 on both sides to move synchronously, so that the round blocks 905 on both sides can drive the support plate 903 to move synchronously through the round rods 906 on both sides, while the round blocks 905 on both sides move, the first springs 902 on both sides can be continuously compressed and released, so that the support plate 903 and the screen plate 16 can shake back and forth quickly, so as to realize the shaking screening of the aluminum antimony metal powder, and while the support plate 903 reciprocates, the arc plate 7 can be driven to drive the first roller 6 to reciprocate, and the smaller metal particles will fall onto the surface of the conveyor belt 12 through the mesh of the screen 16 and be transported to the position of the next sintering process, and the larger particles will be retained at the upper end of the screen 16.

[0054] S3: Cleaning process: After one screening is completed, the telescopic end of the first cylinder 18 is started to extend to drive the vertical plate 13 to move, so that the push plate 807 is separated from the round blocks 905 on both sides, and the second cylinder 5 is controlled to work, so that the telescopic end of the second cylinder 5 is extended to drive the roller frame 10 to move synchronously, so that the roller frame 10 can drive the second roller 6 to separate from the arc plate 7, and the motor 2 904 is controlled to work, so that the output shaft of the motor 2 904 rotates to drive the sleeves 901 on both sides to rotate, and the sleeves on both sides The cylinder 901 drives the support plate 903 to rotate synchronously through the round rods 906 on both sides, so that the support plate 903 and the screen 16 rotate and tilt, so that the large-particle aluminum antimony metal powder on the surface of the screen 16 is poured out, and the operator can collect it. After the cleaning and collection are completed, according to the above-mentioned reverse operation, the motor 2 904 drives the support plate 903 to rotate until it is in contact with the lower end of the frame 19, and at the same time, the surface of the second roller 6 is pressed against the lower end of the arc plate 7 again, and the motor 2 904 is stopped to carry out the next processing.

[0055] S4: Technical advantages:

[0056] Compared with the prior art, after the baffles 201 on both sides are closed, the aluminum antimony metal powder will be prevented from falling too quickly to cause dust, etc., and the feeding pipe 3 can be blocked, so that most of the dust generated during feeding in the present invention is blocked inside the feeding pipe 3, thereby reducing the harm of dust to operators; the screen 16 can be tilted, so that the present invention is more convenient for separating and taking materials after screening, thereby improving the screening efficiency; by separating the vibrating structure and the screen, the device is more convenient when repairing the screen 16, thereby shortening the repair time.

[0057] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A powder screening system for aluminum antimony alloy sintering, comprising a platform (1) and a feeding pipe (3), wherein the upper end of the platform (1) is fixedly connected to the feeding pipe (3), characterized in that: The lower end of the feeding pipe (3) passes through the platform (1), the lower end of the platform (1) is fixedly connected to a frame (19), the lower end of the frame (19) is provided with a flipping device (9), the platform (1) is slidably connected to a slide plate (14) via a slideway provided at the upper end, the upper end of the slide plate (14) is fixedly connected to a vertical plate (13), the outer wall of the vertical plate (13) is provided with a screening device (8), and the interior of the feeding pipe (3) is provided with a dust prevention structure (2).

2. The powder screening system for aluminum-antimony alloy sintering according to claim 1 is characterized in that: The screening device (8) comprises a horizontal plate (801), a frame (802), a vertical rod (803), a first roller (804), a circular ring (805), a sliding rod (806), a push plate (807), a motor 1 (808) and a rotating rod (809); The motor 1 (808) is fixedly connected to the vertical plate (13) through a motor frame, the output shaft of the motor 1 (808) is fixedly connected to one end of a rotating rod (809), the upper end of the rotating rod (809) is rotatably connected to the first roller (804) through a bearing, the outer wall of the first roller (804) is in contact with the inner wall of the frame (802), one end of the frame (802) is fixedly connected to the horizontal plate (801), the lower end of the horizontal plate (801) is symmetrically fixedly connected to a vertical rod (803), the lower ends of the vertical rods (803) on both sides are fixedly connected to a push plate (807), the outer walls of the vertical rods (803) are fixedly connected to a circular ring (805), the outer walls of the circular rings (805) on both sides are fixedly connected to a sliding rod (806), and the outer walls of the sliding rod (806) are slidably connected to the vertical plate (13).

3. The powder screening system for aluminum-antimony alloy sintering according to claim 1, characterized in that: The upper end of the platform (1) is fixedly connected to a first bracket (17), and the left end of the first bracket (17) is fixedly connected to a first cylinder (18).

4. The powder screening system for aluminum-antimony alloy sintering according to claim 1, characterized in that: The turning device (9) comprises a sleeve (901), a first spring (902), a support plate (903), a second motor (904), a round block (905) and a round rod (906); The upper end of the support plate (903) fits with the frame (19); the left end of the support plate (903) is symmetrically fixedly connected with a round rod (906); one end of the two round rods (906) is fixedly connected with a round block (905); the round block (905) and the support plate (903) are respectively fixedly connected with the two ends of the two first springs (902); the outer walls of the round rods (906) on both sides fit with the inner walls of the two sleeves (901); the upper ends of the sleeves (901) are fixedly connected with the output shaft of the second motor (904); the second motor (904) is fixedly connected with the platform (1) through a motor frame; and the output shaft of the second motor (904) is movably connected with the frame (19) through a bearing.

5. The powder screening system for aluminum-antimony alloy sintering according to claim 4, characterized in that: The inner wall of the support plate (903) is fixedly connected to a screen (16), the right end of the support plate (903) is fixedly connected to an arc plate (7), and the lower end of the arc plate (7) is tightly abutted against the second roller (6).

6. The powder screening system for aluminum-antimony alloy sintering according to claim 5, characterized in that: The rotating part of the second roller (6) is rotatably connected to the roller frame (10) via a bearing, the upper end of the roller frame (10) is fixedly connected to the telescopic end of the second cylinder (5), the second cylinder (5) is fixedly connected to the second bracket (4), the lower end of the second bracket (4) is fixedly connected to the platform (1), the right end of the platform (1) is fixedly connected to a support rod (11), and the outer wall of the support rod (11) is slidably connected to the roller frame (10).

7. The powder screening system for aluminum-antimony alloy sintering according to claim 1, characterized in that: The outer wall of the vertical plate (13) is fixedly connected to the telescopic end of the first cylinder (18), the lower end of the platform (1) is fixedly connected to a plurality of supporting legs (15), and the lower end of the platform (1) is provided with a conveyor belt (12).

8. The powder screening system for aluminum-antimony alloy sintering according to claim 1, characterized in that: The dust prevention structure (2) comprises a baffle (201), a support arm (202), a circular sleeve (203), a second spring (204), a straight rod (205) and an arc block (206); The baffles (201) on both sides are movably connected to the feeding tube (3) through bearings, one end of the baffles (201) on both sides is fitted, the lower end of the baffles (201) is symmetrically fixedly connected with arc blocks (206), the arc blocks (206) are movably connected to the plurality of support arms (202) through pins, the lower ends of the plurality of support arms (202) are movably connected to the plurality of circular sleeves (203) through bearings, the inner walls of the circular sleeves (203) are slidably connected to the plurality of straight rods (205), the circular sleeves (203) and the inner walls of the feeding tube (3) are fixedly connected to the two ends of the plurality of second springs (204), and the outer walls of the baffles (201) on both sides are fitted with the inner wall of the feeding tube (3).

9. The method for using the powder screening system for aluminum-antimony alloy sintering according to claims 1-8, characterized in that: First, the powdered metal is placed in a container, and at the same time, the screen (16) inside the support plate (903) is replaced with different mesh sizes according to the size of the aluminum antimony metal powder to be screened. S1: Feeding process: The operator moves the container containing aluminum antimony metal powder to the upper end of the feeding pipe (3), tilts the upper end of the container downward, and pushes the middle position of the baffles (201) on both sides. Under the action of gravity, the aluminum antimony metal powder inside the container can flow to the middle position of the baffles (201) on both sides. After the baffles (201) on both sides are subjected to pressure, they will drive the support arms (202) on both sides to move synchronously through the arc blocks (206) on both sides. The lower ends of the support arms (202) on both sides will drive the round sleeve (203) to slide downward on the surface of the straight rod (205), so that the round sleeve (203) is pressed against the second spring. (204) is compressed so that the contacting end of the baffles (201) on both sides can tilt downward and rotate around the other end of the baffle (201). After the baffle (201) is tilted, the aluminum antimony metal powder on its surface can enter the interior of the feeding tube (3). After the aluminum antimony metal powder enters the interior of the feeding tube (3), the baffles (201) on both sides are no longer subjected to pressure, so that the four second springs (204) are released. Under the push of the second springs (204), the baffles (201) on both sides can return to their original positions. After the baffles (201) on both sides are closed, the aluminum antimony metal powder can be prevented from falling too quickly to cause dust and the like. S2: Screening process: Aluminum antimony metal powder falls onto the surface of the screen (16) through the feeding pipe (3), and the first cylinder (18) is controlled to work, so that the telescopic end of the first cylinder (18) is shortened to drive the vertical plate (13) to move synchronously, so that the vertical plate (13) drives the slide plate (14) to move synchronously, so that the slide plate (14) drives the push plate (807) to fit with the round blocks (905) on both sides, and the motor 1 (808) is controlled to work, so that the output shaft of the motor 1 (808) rotates The rotating rod (809) is driven to rotate synchronously, so that the rotating rod (809) drives the first roller (804) to perform synchronous circular motion, so that the first roller (804) moves inside the frame (802), and the first roller (804) pushes the frame (802) to perform reciprocating motion while moving, so that the frame (802) drives the vertical rods (803) on both sides to perform synchronous motion through the horizontal plate (801), and the vertical rods (803) on both sides can move through the circular motion on both sides while reciprocating. The ring (805) drives the slide bars (806) on both sides to slide inside the vertical plate (13), and at the same time, the vertical rod (803) can drive the push plate (807) to move synchronously, so that the push plate (807) can push the round blocks (905) on both sides to move synchronously, so that the round blocks (905) on both sides can drive the support plate (903) to move synchronously through the round bars (906) on both sides, and when the round blocks (905) on both sides move, the first springs (902) on both sides can be moved. ) is continuously compressed and released, so that the support plate (903) and the screen plate (16) are shaken back and forth quickly, thereby realizing shaking screening of the aluminum antimony metal powder. While the support plate (903) is reciprocating, the arc plate (7) can be driven to drive the first roller (6) to reciprocate. Smaller metal particles will pass through the mesh of the screen (16) and fall onto the surface of the conveyor belt (12), and be transported to the location of the next sintering process. Larger particles will be retained at the upper end of the screen (16). S3: Cleaning process: After one screening is completed, the telescopic end of the first cylinder (18) is started to extend to drive the vertical plate (13) to move, so that the push plate (807) is separated from the round blocks (905) on both sides, and the second cylinder (5) is controlled to work, so that the telescopic end of the second cylinder (5) is extended to drive the roller frame (10) to move synchronously, so that the roller frame (10) can drive the second roller (6) to separate from the arc plate (7), and the motor 2 (904) is controlled to work, so that the output shaft of the motor 2 (904) rotates to drive the sleeves (901) on both sides to rotate, and the two sides of the sleeves (901) are rotated. The sleeve (901) drives the support plate (903) to rotate synchronously through the round rods (906) on both sides, so that the support plate (903) and the screen (16) rotate and tilt, so that the large particles of aluminum antimony metal powder on the surface of the screen (16) are poured out, and the operator can collect it. After the cleaning and collection are completed, according to the above reverse operation, the motor 2 (904) drives the support plate (903) to rotate until it is in contact with the lower end of the frame (19), and at the same time, the surface of the second roller (6) is pressed against the lower end of the arc plate (7) again, and the motor 2 (904) is stopped to carry out the next processing.

Images