Powder metallurgy feeding rotary table

Abstract

The utility model discloses a powder metallurgy feeding rotary table which comprises an annular plate, the annular plate is rotationally arranged in a material conveying channel through a rotating shaft, a first motor is arranged on the outer side of the material conveying channel, a fixed bottom block is fixedly arranged at the front end of the inner side wall of the material conveying channel, an inner groove is formed in the rear end of the inner side wall of the material conveying channel, and a movable bottom block is inserted in the inner groove in a sliding mode. An electric push rod is fixedly arranged on the outer side wall of the conveying channel, a mounting groove is formed in the inner side wall of the annular plate in the circumferential direction of the annular plate, an inner annular plate is rotationally arranged in the mounting groove through a sliding connection mechanism, a filter screen is arranged on the inner side of the inner annular plate, a plurality of gear tooth protrusions are arranged on the outer side of the inner annular plate, and a driving gear is arranged in the mounting groove; a second motor is arranged at the top of the annular plate; according to the device, the filter screen is vibrated through the vibrator, blockage can be relieved, the original top face of the inner ring plate can be rotated to the downward direction, large powder can smoothly fall off and be collected, qualified fine powder cannot be collected, the feeding amount is prevented from being reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy, in particular to a powder metallurgy feeding turntable. Background Art

[0002] Powder metallurgy is a process for producing metal powder or using metal powder (or a mixture of metal powder and non-metallic powder) as raw material, forming and sintering, to manufacture metal materials, composite materials and various types of products. Powder metallurgy includes powder making and products. Powder making is mainly a metallurgical process. There are two methods for producing metal and alloy powders from solid metals and alloys: mechanical pulverization and electrochemical corrosion.

[0003] At present, in the process of metallurgical powder making, one of the links is to discharge the ground metal powder into a mixing bin, and between the metal powder and the mixing bin, a set of mesh plates for filtering metal powder is also set, which is mainly used to filter metal powder that has not been ground to a specified size. Due to the fixed setting of the mesh plate, the metal powder falls from above, and larger pieces of powder will gradually block the holes of the filter screen, thus causing a certain impact on the subsequent metal powder filtration. For example, the authorization announcement number is CN 220950329. U's utility model patent discloses a powder metallurgy feeding turntable. As a prior art, the inventor found that the device has certain defects during use. The vibration mechanism can intermittently knock on the feeding filter disc, which will cause certain structural wear and generate noise; and the openings on the side and bottom of the suction bin will suck in the powder bounced up by the vibration, thereby completing the recovery of metal powder. This process is very likely to suck away some of the fine powder that could have passed through the feeding filter disc, resulting in a reduction in the feeding amount, an increase in unnecessary redundant operations, and a decrease in work efficiency. For this reason, we designed a powder metallurgy feeding turntable to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a powder metallurgy feeding turntable to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The powder metallurgy feeding turntable includes an annular plate arranged inside a feeding channel, the top of the feeding channel is connected to a feeding bin, the bottom of the feeding channel is connected to the interior of a mixing bin through a feeding hose, rotating shafts are symmetrically arranged at the left and right ends of the outer surface of the annular plate, the annular plate is rotatably arranged in the feeding channel through the rotating shaft, a first motor is fixedly arranged on the outer wall of the feeding channel, the output shaft of the first motor passes through the feeding channel and is connected to one end of one of the rotating shafts, a fixed bottom block is fixedly arranged on the front end of the inner wall of the feeding channel, an inner groove is opened at the rear end of the inner wall of the feeding channel, a movable bottom block is slidably inserted in the inner groove, an electric push rod is fixedly arranged on the outer wall of the feeding channel, the output end of the electric push rod extends into the inner groove and is connected to the movable bottom block.

[0007] An installation groove is provided on the inner side wall of the annular plate along its circumferential direction, and an inner ring plate is rotatably arranged in the installation groove via a sliding connection mechanism, a filter screen is provided on the inner side of the inner ring plate, and a plurality of gear tooth protrusions are evenly arranged in the circumferential direction of the outer side of the inner ring plate. A driving gear is rotatably connected to a rotating rod at one place inside the installation groove, and a second motor is provided on the top of the annular plate, and an output shaft of the second motor extends into the installation groove and is connected to the top end of the rotating rod.

[0008] As a preferred solution of the utility model: the inner wall of the inner ring plate is evenly provided with multiple support rods along its circumferential direction, the support rods are located at the bottom of the filter, the other ends of the multiple support rods are connected to the same circular plate, the circular plate is located at the center of the bottom of the filter, and a vibrator is provided at the bottom of the circular plate.

[0009] As a further preferred embodiment of the present invention: the sliding connection mechanism includes two groups of balls arranged on the upper and lower inner walls of the mounting groove, the balls are rotatably arranged in the mounting seat, the mounting seat is fixedly embedded in the inner wall of the mounting groove, and the upper and lower surfaces of the inner ring plate are provided with annular rolling grooves matching the balls along the circumferential direction.

[0010] As a further preferred solution of the utility model: the size of the outer circle of the top of the annular plate is equal to the size of the inner circle of the feeding channel.

[0011] As a further preferred solution of the utility model: the fixed bottom block and the movable bottom block are both in contact with the bottom of the annular plate.

[0012] As a further preferred solution of the utility model: the driving gear is meshed with a plurality of gear tooth protrusions.

[0013] As a further preferred solution of the utility model: the number of balls in each group is multiple and they are evenly spaced and distributed along the annular direction of the inner ring plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects: when the device is used, the vibrator can be started to vibrate the metal powder on the top of the filter screen, and the larger pieces of powder blocking the mesh of the filter screen can be continuously vibrated and bounced up, which can alleviate the blockage. When larger pieces of powder gather more: first stop feeding, then start the electric push rod to make the movable bottom block completely stored in the inner groove, and the bottom side of the annular plate loses the contact of the movable bottom block. At this time, start the first motor again, and the annular plate can be controlled to rotate through the rotating shaft, so that the original top surface of the inner ring plate can be rotated to a downward direction, and larger pieces of powder can be smoothly dropped into the feeding hose, and the staff only needs to move the feeding hose to the outside of the mixing bin in advance, so as to facilitate the separate collection of larger pieces of powder. If there are still larger pieces of powder stuck in the mesh of the filter screen, the stuck powder can be vibrated and bounced up and dropped smoothly by starting the vibrator. The collected powder is larger pieces of powder, and there is no qualified fine powder, which avoids the reduction of feeding amount and the increase of redundant operations, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded view of the overall structure of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram from another perspective;

[0017] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0018] Among them: 1-annular plate, 2-tooth protrusion, 3-filter screen, 4-inner ring plate, 5-annular rolling groove, 6-rotating shaft, 7-first motor, 8-second motor, 9-driving gear, 10-mounting groove, 11-fixed bottom block, 12-rotating rod, 13-movable bottom block, 14-electric push rod, 15-support rod, 16-vibrator, 17-mounting seat, 18-ball. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1-3In the embodiment of the utility model, the powder metallurgy feeding turntable includes an annular plate 1 arranged inside the feeding channel. The top of the feeding channel is connected to a feeding bin. The bottom of the feeding channel is connected to the inside of the mixing bin through a feeding hose. The metal powder is fed from the feeding bin into the feeding channel and smoothly enters the mixing bin through the feeding hose to complete the feeding process. The size of the outer circle of the top of the annular plate 1 is equal to the size of the inner circle of the feeding channel. The outer surface of the annular plate 1 is symmetrically provided with a rotating shaft 6 at both ends. The annular plate 1 is rotated by the rotating shaft 6. In the feed channel, a first motor 7 is fixedly provided on the outer wall of the feed channel, and the output shaft of the first motor 7 passes through the feed channel and is connected to one end of one of the rotating shafts 6. A fixed bottom block 11 is fixedly provided at the front end of the inner wall of the feed channel, and an inner groove is provided at the rear end of the inner wall of the feed channel, in which a movable bottom block 13 is slidably inserted, and both the fixed bottom block 11 and the movable bottom block 13 abut against the bottom of the annular plate 1, and an electric push rod 14 is fixedly provided on the outer wall of the feed channel, and the output end of the electric push rod 14 extends into the inner groove and is connected to the movable bottom block 13.

[0021] An installation groove 10 is provided on the inner wall of the annular plate 1 along its circumferential direction, and an inner ring plate 4 is rotatably provided in the installation groove 10 through a sliding connection mechanism. A filter screen 3 is provided on the inner side of the inner ring plate 4, and a plurality of gear tooth protrusions 2 are evenly provided on the outer side of the inner ring plate 4 in the circumferential direction. A driving gear 9 is rotatably connected to a rotating rod 12 at one place inside the installation groove 10, and the driving gear 9 is meshed with the plurality of gear tooth protrusions 2. A second motor 8 is provided on the top of the annular plate 1, and the output shaft of the second motor 8 extends into the installation groove 10 and is connected to the top of the rotating rod 12.

[0022] The inner wall of the inner ring plate 4 is evenly provided with a plurality of support rods 15 along its circumferential direction. The support rods 15 are located at the bottom of the filter screen 3 to support the filter screen 3. The other ends of the plurality of support rods 15 are connected to the same circular plate, which is located at the bottom center of the filter screen 3. A vibrator 16 is provided at the bottom of the circular plate. When the vibrator 16 is working, the filter screen 3 can vibrate, and then the metal powder on the top of the filter screen 3 can be vibrated to vibrate the larger pieces of powder blocking the mesh of the filter screen 3 to bounce up, thereby alleviating the blockage problem.

[0023] The sliding connection mechanism includes two groups of balls 18 arranged on the inner walls of the upper and lower sides of the mounting groove 10. The number of balls 18 in each group is multiple and is evenly spaced along the annular direction of the inner ring plate 4. The balls 18 are rotatably arranged in the mounting seat 17. The mounting seat 17 is fixedly embedded in the inner wall of the mounting groove 10. The upper and lower surfaces of the inner ring plate 4 are provided with annular rolling grooves 5 that match the balls 18 along the circumferential direction. Through this design, the sliding friction generated by the rotation of the inner ring plate 4 can be converted into rolling friction, which greatly reduces the friction force, also reduces the power consumption of the second motor 8, and improves the practicality of the device.

[0024] Specifically, when the device is used, the vibrator 16 can be started to vibrate the metal powder on the top of the filter screen 3, and the larger pieces of powder blocking the mesh of the filter screen 3 can be continuously vibrated and bounced up, which can alleviate the blockage. When larger pieces of powder gather more: first stop feeding, then start the electric push rod 14, so that the movable bottom block 13 is completely stored in the inner groove, and the bottom side of the annular plate 1 loses the contact of the movable bottom block 13. At this time, start the first motor 7 again, and the annular plate 1 can be controlled to rotate through the rotating shaft 6, so that the original top surface of the inner ring plate 4 can be rotated to a downward direction, and larger pieces of powder can be smoothly dropped into the feeding hose, and the staff only needs to move the feeding hose to the outside of the mixing bin in advance, so that the larger pieces of powder can be conveniently collected separately. If there are still larger pieces of powder stuck in the mesh of the filter screen 3, the stuck powder can be vibrated and bounced up and dropped smoothly by starting the vibrator 16. The collected powder is larger pieces of powder, and there is no qualified fine powder, which avoids the reduction of feeding amount and the increase of redundant operations, thereby improving work efficiency.

[0025] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A powder metallurgy feeding turntable, comprising an annular plate (1) arranged inside a feeding channel; characterized in that: The top of the material delivery channel is connected to a feeding bin, and the bottom of the material delivery channel is connected to the interior of the mixing bin through a material delivery hose. The left and right ends of the outer surface of the annular plate (1) are symmetrically provided with rotating shafts (6), and the annular plate (1) is rotatably arranged in the material delivery channel through the rotating shaft (6). A first motor (7) is fixedly arranged on the outer wall of the material delivery channel, and the output shaft of the first motor (7) passes through the material delivery channel and is connected to one end of one of the rotating shafts (6). A fixed bottom block (11) is fixedly arranged on the front end of the inner wall of the material delivery channel, and an inner groove is opened at the rear end of the inner wall of the material delivery channel, and a movable bottom block (13) is slidably inserted in the inner groove. An electric push rod (14) is fixedly arranged on the outer wall of the material delivery channel. The output end of the electric push rod (14) extends into the inner groove and is connected to the movable bottom block (13). The inner side wall of the annular plate (1) is provided with a mounting groove (10) along its circumferential direction. An inner ring plate (4) is rotatably provided in the mounting groove (10) through a sliding connection mechanism. A filter screen (3) is provided on the inner side of the inner ring plate (4). A plurality of gear tooth protrusions (2) are evenly provided on the outer side of the inner ring plate (4) in the circumferential direction. A driving gear (9) is rotatably connected to a rotating rod (12) at a place inside the mounting groove (10). A second motor (8) is provided at the top of the annular plate (1). The output shaft of the second motor (8) extends into the mounting groove (10) and is connected to the top of the rotating rod (12).

2. The powder metallurgy feeding turntable according to claim 1, characterized in that: The inner side wall of the inner ring plate (4) is evenly provided with a plurality of support rods (15) along its circumferential direction. The support rods (15) are located at the bottom of the filter screen (3). The other ends of the plurality of support rods (15) are connected to the same circular plate, which is located at the center of the bottom of the filter screen (3). A vibrator (16) is provided at the bottom of the circular plate.

3. The powder metallurgy feeding turntable according to claim 2, characterized in that: The sliding connection mechanism comprises two groups of balls (18) arranged on the inner walls of the upper and lower sides of the mounting groove (10); the balls (18) are rotatably arranged in the mounting seat (17); the mounting seat (17) is fixedly embedded in the inner wall of the mounting groove (10); and the upper and lower surfaces of the inner ring plate (4) are provided with annular rolling grooves (5) matching the balls (18) along the circumferential direction.

4. The powder metallurgy feeding turntable according to claim 3 is characterized in that: The size of the outer circle of the top of the annular plate (1) is equal to the size of the inner circle of the material conveying channel.

5. The powder metallurgy feeding turntable according to claim 4, characterized in that: The fixed bottom block (11) and the movable bottom block (13) are both in contact with the bottom of the annular plate (1).

6. The powder metallurgy feeding turntable according to claim 1, characterized in that: The driving gear (9) is meshed with a plurality of gear tooth protrusions (2).

7. The powder metallurgy feeding turntable according to claim 3, characterized in that: Each group of balls (18) has a plurality of balls, which are evenly spaced and distributed along the annular direction of the inner ring plate (4).

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