Metal powder grinding and screening device

Abstract

The invention discloses a metal powder grinding and screening device, which relates to the technical field of metal powder processing, and is characterized in that the device comprises a shell and a motor fixedly connected to the shell, the outer wall of the shell is fixedly connected with a supporting frame, the top of the shell is provided with a feeding pipe, the bottom of the shell is provided with a discharging pipe, and a grinding area is arranged in the shell; the grinding area is communicated with the feeding pipe; the screening area is arranged between the grinding area and the discharging pipe and used for screening the metal powder; a rotating part is rotationally connected into the shell and fixedly connected with the motor, the grinding area and the screening area are connected through the rotating part, the rotating part is located in the grinding area, the screening area and the discharging pipe, a stirring part is arranged on the rotating part, the stirring part is located in the screening area, and a storage assembly is arranged on the discharging pipe and connected with the screening area and the rotating part in a sleeved mode. And a recycling assembly is arranged on one side of the storage assembly. Grinding and screening are integrated, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal powder processing, and in particular to a metal powder grinding and screening device. Background Art

[0002] Metal powder refers to a group of metal particles less than 1mm in size. It includes single metal powders, alloy powders, and powders of certain refractory compounds with metallic properties. It is the primary raw material for powder metallurgy. Elemental metals are generally silvery white. Under certain conditions, metals become black powders, and most metal powders are black.

[0003] When processing metal powder, existing workers usually use grinders to grind and crush it. However, no matter which type of grinder is available on the market, there are certain defects. For example, the function is relatively single. In the process of grinding metal powder, there will always be a lot of coarse metal particles that have not been ground into powder. If the particles of different coarseness are not screened and then ground a second time, the pressure of subsequent work will be greatly increased. Screening equipment and manpower are needed to complete the screening work and then grind the screened particles a second time. This is time-consuming and labor-intensive, and reduces work efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a metal powder grinding and screening device, which has the advantage of being able to integrate grinding and screening and improve work efficiency.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A metal powder grinding and screening device comprises a housing and a motor fixedly connected to the housing, a support frame fixedly connected to the outer wall of the housing, a feed pipe provided on the top of the housing, a discharge pipe provided on the bottom of the housing, a grinding area provided in the housing for grinding metal powder, and the grinding area communicates with the feed pipe;

[0007] The screening area is set between the grinding area and the discharge pipe and is used to screen the metal powder;

[0008] A rotating part is rotatably connected inside the shell, and the rotating part is fixedly connected to the motor. The grinding area and the screening area are connected to each other through the rotating part. The rotating parts are respectively located in the grinding area, the screening area and the discharge pipe. The rotating part is provided with a stirring part fixedly connected to it, and the stirring part is located in the screening area. The discharge pipe is provided with a storage component threadedly connected to it, which is used for collecting metal powder. The storage component is respectively connected to the screening area and the rotating part. A recovery component is provided on one side of the storage component for recovering metal powder, and the recovery component is communicated with the grinding area.

[0009] Further arrangement: the grinding area includes a first grinding block fixedly connected to the inner wall of the shell, a first grinding stone fixedly connected to the rotating member is provided on one side of the first grinding block, the first grinding stone is rotatably connected in the shell, a grinding groove is provided in the first grinding stone, the grinding groove is communicated with the recovery component, a second grinding block fixedly connected to the first grinding stone is provided in the grinding groove, and a second grinding stone fixedly connected to the rotating member is provided on one side of the second grinding block.

[0010] Further arrangement: the rotating member includes a rotating shaft rotatably connected to the shell, the rotating shaft is hollow, the first grinding block and the screening area are connected to each other through the rotating shaft, the rotating shaft is fixedly connected to the stirring member, one end of the rotating shaft is fixedly connected to the motor, and the other end of the rotating shaft is provided with two first connecting rods fixedly connected to it, the first connecting rods are rotatably connected to the discharge pipe respectively, the interior of the rotating shaft is provided with a discharge wall fixedly connected to it, a circular groove is opened on the outer wall of the rotating shaft, and the circular groove is connected to one side of the discharge wall, the rotating shaft is provided with a collecting plate fixedly connected to it, for introducing metal powder into the circular groove, the collecting plate is fixedly connected to the first grinding stone, and the end of the rotating shaft facing the ground is socketed with the storage assembly.

[0011] Further configuration: the stirring member includes a plurality of stirring rods fixedly connected to the rotating shaft, one end of the stirring rod is respectively provided with a rotating groove, the rotating groove is respectively provided with a ball connected to the rotating groove, and the ball is respectively connected to the screening area.

[0012] Further arrangement: the screening area includes a filter inner ring at the junction with the ball bearing, the filter inner ring is fixedly connected to the rotating shaft, a plurality of through holes for screening metal powder are opened on one side of the outer wall of the filter inner ring, a plurality of first openings are opened below the filter inner ring, and a blocking plate adapted therefor is respectively provided in the first opening, and the blocking plate is rotatably connected to the first opening, and a rotating rod rotatably connected thereto is respectively provided on the blocking plate, and a driving member for driving the rotating rod is provided on the outer wall of the rotating shaft, a first rotating box rotatably connected thereto is provided in the shell, the filter inner ring is fixedly connected in the first rotating box, and a plurality of second openings are opened below the first rotating box for unloading metal powder, a unloading ring fixedly connected to the first rotating box is provided on one side of the second opening, the unloading ring is socketed with the storage assembly, and a plurality of second connecting rods fixedly connected thereto are provided on the outer wall of the unloading ring, and the second connecting rods are rotatably connected in the unloading pipe.

[0013] Further configuration: the driving member includes a circular ring slidably connected to the outer wall of the rotating shaft, the rotating rods are respectively rotatably connected to the circular rings, and a first cylinder and a second cylinder fixedly connected to the circular rings are provided below the circular rings, and the first cylinder and the second cylinder are respectively fixedly connected to the rotating shaft.

[0014] Further arrangement: the storage component includes a first material box threadably connected to the discharge pipe, a second material box is detachably installed in the first material box, the second material box is socketed with the discharge ring, a third material box is detachably installed in the second material box, the third material box is socketed with the rotating shaft, a first recovery pipe is detachably installed on one side of the first material box, a second recovery pipe is detachably installed on one side of the second material box, and the first recovery pipe and the second recovery pipe are respectively connected to the recovery component.

[0015] Further configuration: the recovery component includes a tee joint threadedly connected to the first recovery pipe and the second recovery pipe, the tee joint is provided with a third recovery pipe threadedly connected to it, the third recovery pipe is provided with a pneumatic dust conveying pump fixedly connected to the shell, which is used to extract metal powder, the pneumatic dust conveying pump is provided with a fourth recovery pipe, one end of the fourth recovery pipe passes through the shell and the first grinding block, and the fourth recovery pipe is communicated with the grinding groove.

[0016] Further configuration: a discharge valve is provided on the first recovery pipeline and the second recovery pipeline respectively, for controlling the discharge of the first recovery pipeline and the second recovery pipeline.

[0017] Further arrangement: a clamping block fixedly connected to the blocking plate is provided on the blocking plate, and a clamping groove adapted to the clamping block is provided below the filter inner ring to clamp the blocking plate.

[0018] In summary, the present invention has the following beneficial effects:

[0019] (1) In the present invention, a grinding area, a screening area and a storage component are provided in the shell from top to bottom. The metal powder enters the grinding area from the top of the shell and is ground into metal powder of a desired size. Then, the metal powder enters the screening area for screening to screen out the desired metal powder particles. During the screening process, the metal powder can also be dispersed and stirred by a stirring member to prevent the metal powder from not being screened out. Finally, the shell enters the recovery component to recycle the screened metal powder.

[0020] (2) In the present invention, a pneumatic dust conveying pump is provided on the outer side of the shell. The pneumatic dust conveying pump sends the metal powder entering the recovery component back into the grinding area for secondary grinding through the first recovery pipe, the second recovery pipe, the third recovery pipe, the fourth recovery pipe and the three-way joint. The secondary grinding is performed by the second grinding stone in the first grinding stone. Secondly, the metal powder that has been subjected to secondary grinding is sent back into the storage component through the collecting plate, the circular groove on the rotating shaft and the discharge wall in the rotating shaft.

[0021] (3) In the present invention, since the rotating shaft is hollow and is provided with a circular groove and a collecting plate on the rotating shaft, the metal powder ground by the second grinding stone can be collected and taken out from the inside through the rotating shaft. Secondly, the unloading wall inside the rotating shaft can facilitate the unloading of the metal powder.

[0022] (4) In the present invention, the first cylinder and the second cylinder are pushed to drive the ring to slide up and down on the rotating shaft, and the ring drives the rotating rod to move, and the rotating rod drives the blocking plate to move, so as to achieve the blocking and opening of the first opening, so as to facilitate the removal of the metal powder that has not been screened out. Secondly, the blocking plate can be clamped on the first opening through the clamping block on the blocking plate and the clamping groove on the filter inner ring.

[0023] (5) In the present invention, the first material box in the storage assembly is threadedly connected to the discharge pipe, which can facilitate the collection of metal powder screened in the screening area. The second material box is sleeved with the discharge ring, which can facilitate the collection of metal powder that has not been screened out in the filter inner ring. The third material box can collect the metal powder in the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the structure of a metal powder grinding and screening device;

[0026] Figure 2 It is a schematic diagram of the internal structure of the metal powder grinding and screening device;

[0027] Figure 3 is a schematic diagram of the shaft structure;

[0028] Figure 4 is a schematic diagram of the blocking plate structure;

[0029] Figure 5 Schematic diagram of the stirring element structure;

[0030] Figure 6 It is a schematic diagram of the storage component structure;

[0031] Figure 7 It is a schematic diagram of the recycling component structure;

[0032] In the figure, 1, housing; 11, grinding area; 12, screening area; 13, rotating member; 131, rotating shaft; 132, first connecting rod; 133, circular groove; 134, collecting plate; 135, inner filter ring; 1351, first opening; 1352, blocking plate; 1353, clamping groove; 1354, clamping block; 1355, rotating rod; 1356, circular ring; 1357, first cylinder; 1358, second cylinder; 136, through hole; 14, first grinding block; 15, first grinding stone; 16, grinding groove; 17, second grinding block; 171, stirring rod; 17 2. Rotating trough; 173. Ball bearing; 18. Second grinding stone; 19. Discharge wall; 110. First rotating box; 111. Second opening; 112. Discharge ring; 113. Second connecting rod; 2. Motor; 3. Feed pipe; 4. Discharge pipe; 5. Storage component; 51. First material box; 52. Second material box; 53. Third material box; 6. Recovery component; 61. First recovery pipe; 62. Second recovery pipe; 63. T-joint; 64. Pneumatic dust conveying pump; 65. Third recovery pipe; 66. Fourth recovery pipe; 67. Discharge valve; 7. Support frame. DETAILED DESCRIPTION

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0034] The technical solution adopted in the present invention is:

[0035] A metal powder grinding and screening device includes a housing 1 and a motor 2 fixedly connected to the housing 1. Figure 1 As shown, the outer wall of the shell 1 is fixedly connected to a support frame 7, a feed pipe 3 is provided on the top of the shell 1, a discharge pipe 4 is provided on the bottom of the shell 1, and a grinding area 11 is provided in the shell 1 for grinding metal powder, and the grinding area 11 is communicated with the feed pipe 3;

[0036] like Figure 2 As shown, the screening area 12 is provided between the grinding area 11 and the discharge pipe 4 and is used for screening the metal powder.

[0037] like Figure 1 As shown, Figure 2As shown, a rotating member 13 is rotatably connected within the housing 1. The rotating member 13 is fixedly connected to the motor 2. The grinding area 11 and the screening area 12 are interconnected via the rotating member 13. The rotating member 13 is located in the grinding area 11, the screening area 12, and the discharge pipe 4. The grinding area 11 includes a first grinding block 14 fixedly connected to the inner wall of the housing 1. A first grinding stone 15 fixedly connected to the rotating member 13 is provided inside the first grinding block 14. The first grinding stone 15 is rotatably connected within the housing 1. A grinding groove 16 is defined within the first grinding stone 15. A second grinding block 17 fixedly connected to the first grinding block 14 is provided within the grinding groove 16. A second grinding stone 18 fixedly connected to the rotating member 13 is provided on one side of the second grinding block 17. The rotating member 13 is driven to rotate by the motor 2, and the rotating member 13 drives the first grinding stone 15 and the second grinding stone 18 to rotate. The rotating member 13 is provided with a stirring member fixedly connected thereto, and the stirring member is located within the screening area 12.

[0038] like Figure 1 As shown, Figure 2 Shown and Figure 3 As shown, the rotating member 13 includes a rotating shaft 131 rotatably connected to the shell 1, and the rotating shaft 131 is hollow. The first grinding block 14 and the screening area 12 are connected to each other through the rotating shaft 131. The rotating shaft 131 is fixedly connected to the stirring member. The upper end of the rotating shaft 131 is fixedly connected to the motor 2. The lower end of the rotating shaft 131 is provided with two first connecting rods 132 fixedly connected thereto. The first connecting rods 132 are rotatably connected to the discharge pipe 4 respectively. The interior of the rotating shaft 131 is provided with a discharge wall 19 fixedly connected thereto. A circular groove 133 is opened on the outer wall of the rotating shaft 131, and the circular groove 133 is connected to the outer side of the discharge wall 19. A collecting plate 134 fixedly connected thereto is provided on the rotating shaft 131 for introducing metal powder into the circular groove 133. The collecting plate 134 is fixedly connected to the first grinding stone 15. By fixing the collecting plate 134 to the first grinding stone 15, the metal powder between the first grinding stone 15 and the second grinding stone 18 can be easily collected.

[0039] like Figure 2 As shown, Figure 4 Shown and Figure 5As shown, the discharge pipe 4 is provided with a receiving assembly 5 connected thereto by a thread, for collecting the metal powder, the receiving assembly 5 is respectively sleeved with the screening area 12 and the rotating member 13, and a recovery assembly 6 is provided on the upper side of the receiving assembly 5 for recovering the metal powder, and the recovery assembly 6 is communicated with the grinding groove 16 in the grinding area 12, for recovering the metal powder into the grinding groove 16 for secondary grinding, and the stirring member includes a plurality of stirring rods 171 fixedly connected to the rotating shaft 131, and the left end of the stirring rod 171 is respectively provided with a rotating groove 172 , the rotating grooves 172 are respectively provided with balls 173 connected thereto for rotation, and the balls 173 are respectively connected to the screening area 12, and the screening area 12 includes a filter inner ring 135 connected to the balls 173, and the filter inner ring 135 is fixedly connected to the rotating shaft 131. The front side of the outer wall of the filter inner ring 135 is provided with a plurality of through holes 136 for screening metal powder. By opening the through holes 136 on the front side of the filter inner ring 135, the metal powder can be screened out. There is no through hole 136 on the rear side of the filter inner ring 135. 6. It is convenient to break up and stir the metal powder in the filter inner ring 135. A plurality of first openings 1351 are provided below the filter inner ring 135. The first openings 1351 are respectively provided with blocking plates 1352 adapted thereto. The blocking plates 1352 are rotatably connected to the first openings 1351. A clamping block 1354 is provided at the left end below the blocking plate 1352 and is fixedly connected thereto. A slot 1353 adapted to the clamping block 1354 is provided below the filter inner ring 135 for clamping the blocking plate 1352. The blocking plate 1352 is respectively provided with a rotating rod 1355 rotatably connected thereto, and the outer wall of the rotating shaft 131 is provided with a driving member for driving the rotating rod 1355, and the driving member includes a ring 1356 slidingly connected to the outer wall of the rotating shaft 131, and the rotating rod 1355 is respectively rotatably connected to the ring 1356, and a first cylinder 1357 and a second cylinder 1358 fixedly connected thereto are provided below the ring 1356, and the first cylinder 1357 and the second cylinder 1358 are respectively fixedly connected to the rotating shaft 131.

[0040] like Figure 2 As shown, the shell 1 is provided with a first rotating box 110 rotatably connected thereto, the filter inner ring 135 is fixedly connected to the first rotating box 110, and a plurality of second openings 111 are provided below the first rotating box 110 for unloading metal powder. A unloading ring 112 fixedly connected to the first rotating box 110 is provided on the inner side of the second opening 111, and the unloading ring 112 is sleeved with the storage assembly 5. The outer wall of the unloading ring 112 is provided with a plurality of second connecting rods 113 fixedly connected thereto, and the second connecting rods 113 are rotatably connected in the unloading pipe.

[0041] like Figure 2 As shown, Figure 6 Shown and Figure 7As shown, the storage component 5 includes a first material box 51 threadably connected to the discharge pipe 4, and a second material box 52 is detachably installed in the first material box 51. The second material box 52 is sleeved with the discharge ring 112, which can facilitate the rotation of the discharge ring 112 in the second material box 52. A third material box 53 is detachably installed in the second material box 52, and the third material box 53 is sleeved with the rotating shaft 131, which can facilitate the rotation of the rotating shaft 131 in the third material box 53. A first recovery pipe 61 is detachably installed on the lower side of the first material box 51, and a second recovery pipe 62 is detachably installed on the lower side of the second material box 52. The first recovery pipe 61 and the second recovery pipe 62 are respectively connected to the recovery component 6.

[0042] like Figure 1 As shown, Figure 7 As shown, the recovery component 6 includes a three-way joint 63 threadedly connected to the first recovery pipe 61 and the second recovery pipe 62, and the three-way joint 63 is provided with a third recovery pipe 65 threadedly connected thereto, and the third recovery pipe 65 is provided with a pneumatic dust conveying pump 64 fixedly connected to the shell 1 for extracting metal powder, and the pneumatic dust conveying pump 64 is provided with a fourth recovery pipe 66, one end of the fourth recovery pipe 66 passes through the shell 1 and the first grinding block 14, and the upper end of the fourth recovery pipe 66 is communicated with the grinding groove 16, and the first recovery pipe 61 and the second recovery pipe 62 are respectively provided with discharge valves 67 for controlling the discharge of the first recovery pipe 61 and the second recovery pipe 62.

[0043] Working principle:

[0044] When it is necessary to process the metal powder, the staff starts the motor 2, and the motor 2 drives the rotating shaft 131 fixedly connected to it to rotate in the shell 1. The rotating shaft 131 drives the first grinding stone 15 fixedly connected to it to rotate in the shell 1, and the metal powder enters the shell 1 through the feed pipe 3. The metal powder entering the shell 1 is ground under the action of the first grinding stone 15 and the first grinding block 14. The ground metal powder will fall into the inner filter ring 135. Since the inner filter ring 135 is fixedly connected to the rotating shaft 131, the rotating shaft 131 drives the inner filter ring 135 to rotate. At this time, the through hole 136 on the inner filter ring 135 will screen out the ground and qualified metal powder from the inner filter ring 135. The screened metal powder will enter the first rotating box 110, and enter the discharge pipe 4 through the second opening 111 on the first rotating box 110. The metal powder enters the first material box 51 through the discharge pipe 4, thereby realizing the grinding and screening of the metal powder.

[0045] When the rotating shaft 131 rotates, it can drive several stirring rods 171 fixedly connected to it to rotate in the filter inner ring 135, so as to stir and disperse the metal powder in the filter inner ring 135. Secondly, a rotating groove 172 is provided on the left end of the stirring rod 171, and a ball 173 rotates in the rotating groove 172. The ball 173 contacts the inner wall of the filter inner ring 135, which can have a certain collision effect on the inner wall of the filter inner ring 135, preventing the metal powder from clogging the through hole 136 on the filter inner ring 135. Moreover, the filter inner ring 135 can also prevent the metal powder from clogging the through hole 136 during the rotation process.

[0046] When it is necessary to take out the metal powder that has not been screened out in the filtering inner ring 135, the first cylinder 1357 and the second cylinder 1358 fixedly connected to the rotating shaft 131 move. The movement of the first cylinder 1357 and the second cylinder 1358 drives the ring 1356 fixedly connected thereto to slide on the rotating shaft 131. The movement of the ring 1356 drives the rotating rod 1355 rotatably connected thereto to move. The movement of the rotating rod 1355 drives the blocking plate 1352 rotatably connected thereto to rotate in the first opening 1351, thereby achieving The driving of the blocking plate 1352 can limit the blocking plate 1352 through the clamping block 1354 on the blocking plate 1352 and the clamping groove 1353 below the filter inner ring 135 that is adapted to the clamping block 1354. When the blocking plate 1352 is opened, the metal powder in the filter inner ring 135 will enter the discharge ring 112 through the first opening 1351, and then pass through the second material box 52 that is socketed with the discharge ring 112, so as to collect the metal powder that has not been screened out of the filter inner ring 135.

[0047] When it is necessary to perform secondary grinding on the metal powder in the first material box 51 and the second material box 52, the pneumatic dust conveying pump 64 is operated. Since the first recovery pipe 61 is connected to the first material box 51, the second recovery pipe 62 is connected to the second material box 52, and the first recovery pipe 61 and the second recovery pipe 62 are connected to the pneumatic dust conveying pump 64 through the three-way joint 63 and the third recovery pipe 65, the cylinder dust conveying pump extracts the metal powder from the first material box 51 and the second material box 52, and transmits it to the grinding tank 16 in the shell 1 again through the fourth recovery pipe 66, so as to perform secondary grinding on the metal powder. The ground metal powder is collected by the collecting plate 134, and the collected metal powder enters the rotating shaft 131 through the circular groove 133 on the rotating shaft 131, and then passes through the discharge wall 19 in the rotating shaft 131 to allow the metal powder to enter the third material box 53 connected to the rotating shaft 131, thereby realizing the collection of the metal powder after the secondary grinding.

[0048] The above are only preferred embodiments of the present invention and do not impose any form of limitation on the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the invention.

Claims

1. A metal powder grinding and screening device, comprising a housing (1) and a motor (2) fixedly connected to the housing (1), characterized in that: The outer wall of the shell (1) is fixedly connected to a support frame (7), a feed pipe (3) is provided at the top of the shell (1), a discharge pipe (4) is provided at the bottom of the shell (1), a grinding area (11) is provided in the shell (1) for grinding metal powder, and the grinding area (11) is communicated with the feed pipe (3); A screening area (12) is provided between the grinding area (11) and the discharge pipe (4) and is used for screening metal powder; A rotating member (13) is rotatably connected in the housing (1), and the rotating member (13) is fixedly connected to the motor (2). The grinding area (11) and the screening area (12) are connected to each other through the rotating member (13). The rotating member (13) is respectively located in the grinding area (11), the screening area (12) and the discharge pipe (4). The rotating member (13) is provided with a stirring member fixedly connected thereto, and the stirring member is located in the screening area (12). The discharge pipe (4) is provided with a receiving assembly (5) threadedly connected thereto for collecting metal powder. The receiving assembly (5) is respectively sleeved with the screening area (12) and the rotating member (13). A recovery assembly (6) is provided on one side of the receiving assembly (5) for recovering metal powder, and the recovery assembly (6) is communicated with the grinding area (11).

2. The metal powder grinding and screening device according to claim 1, characterized in that: The grinding area (11) includes a first grinding block (14) fixedly connected to the inner wall of the housing (1); a first grinding stone (15) fixedly connected to the rotating member (13) is provided on one side of the first grinding block (14); the first grinding stone (15) is rotatably connected in the housing (1); a grinding groove (16) is provided in the first grinding stone (15); the grinding groove (16) is communicated with the recovery component (6); a second grinding block (17) fixedly connected to the first grinding stone (15) is provided in the grinding groove (16); a second grinding stone (18) fixedly connected to the rotating member (13) is provided on one side of the second grinding block (17).

3. The metal powder grinding and screening device according to claim 2, characterized in that: The rotating member (13) includes a rotating shaft (131) rotatably connected to the housing (1), the rotating shaft (131) is hollow, the first grinding block (14) and the screening area (12) are connected to each other via the rotating shaft (131), the rotating shaft (131) is fixedly connected to the stirring member, one end of the rotating shaft (131) is fixedly connected to the motor (2), and the other end of the rotating shaft (131) is provided with two first connecting rods (132) fixedly connected thereto, and the first connecting rods (132) are respectively rotatably connected to the discharge pipe (4) The interior of the rotating shaft (131) is provided with a material discharge wall (19) fixedly connected thereto, a circular groove (133) is provided on the outer wall of the rotating shaft (131), and the circular groove (133) is connected to one side of the material discharge wall (19), the rotating shaft (131) is provided with a collecting plate (134) fixedly connected thereto, and is used to introduce metal powder into the circular groove (133), the collecting plate (134) is fixedly connected to the first grinding stone (15), and the end of the rotating shaft (131) facing the ground is sleeved with the storage assembly (5).

4. The metal powder grinding and screening device according to claim 3, characterized in that: The stirring member comprises a plurality of stirring rods (171) fixedly connected to the rotating shaft (131), and a rotation groove (172) is respectively provided at one end of the stirring rod (171). A ball (173) rotatably connected to the rotating groove (172) is respectively provided in the rotating groove (172), and the ball (173) is respectively connected to the screening area (12).

5. The metal powder grinding and screening device according to claim 4, characterized in that: The screening area (12) includes a filtering inner ring (135) connected to the ball (173), the filtering inner ring (135) is fixedly connected to the rotating shaft (131), a plurality of through holes (136) for screening metal powder are provided on one side of the outer wall of the filtering inner ring (135), a plurality of first openings (1351) are provided below the filtering inner ring (135), and blocking plates (1352) adapted thereto are respectively provided in the first openings (1351), and the blocking plates (1352) are rotatably connected to the first openings (1351), and rotating rods (1355) rotatably connected thereto are respectively provided on the blocking plates (1352), and the outer wall of the rotating shaft (131) is provided with a plurality of through holes (136) for screening metal powder. A driving member for driving a rotating rod (1355) is provided, a first rotating box (110) rotatably connected to the rotating rod (1355) is provided in the housing (1), a filter inner ring (135) is fixedly connected in the first rotating box (110), a plurality of second openings (111) are provided below the first rotating box (110) for unloading metal powder, a unloading ring (112) fixedly connected to the first rotating box (110) is provided on one side of the second opening (111), the unloading ring (112) is sleeved with the storage assembly (5), a plurality of second connecting rods (113) fixedly connected to the unloading ring (112) are provided on the outer wall of the unloading ring (112), and the second connecting rods (113) are rotatably connected in the unloading pipe.

6. The metal powder grinding and screening device according to claim 5, characterized in that: The driving member includes a circular ring (1356) slidably connected to the outer wall of the rotating shaft (131), and the rotating rods (1355) are respectively rotatably connected to the circular ring (1356). A first cylinder (1357) and a second cylinder (1358) fixedly connected to the circular ring (1356) are provided below the circular ring (1356), and the first cylinder (1357) and the second cylinder (1358) are respectively fixedly connected to the rotating shaft (131).

7. The metal powder grinding and screening device according to claim 5, characterized in that: The storage assembly (5) includes a first material box (51) threadedly connected to the discharge pipe (4); a second material box (52) is detachably installed in the first material box (51); the second material box (52) is sleeved with the discharge ring (112); a third material box (53) is detachably installed in the second material box (52); the third material box (53) is sleeved with the rotating shaft (131); a first recovery pipe (61) is detachably installed on one side of the first material box (51); a second recovery pipe (62) is detachably installed on one side of the second material box (52); the first recovery pipe (61) and the second recovery pipe (62) are respectively connected to the recovery assembly (6).

8. The metal powder grinding and screening device according to claim 7, characterized in that: The recovery assembly (6) comprises a three-way joint (63) threadedly connected to the first recovery pipe (61) and the second recovery pipe (62); the three-way joint (63) is provided with a third recovery pipe (65) threadedly connected thereto; the third recovery pipe (65) is provided with a pneumatic dust delivery pump (64) fixedly connected to the housing (1) for extracting metal powder; the pneumatic dust delivery pump (64) is provided with a fourth recovery pipe (66); one end of the fourth recovery pipe (66) passes through the housing (1) and the first grinding block (14), and one end of the fourth recovery pipe (66) is communicated with the grinding groove (16).

9. The metal powder grinding and screening device according to claim 8, characterized in that: The first recovery pipe (61) and the second recovery pipe (62) are respectively provided with discharge valves (67) for controlling the discharge of the first recovery pipe (61) and the second recovery pipe (62).

10. The metal powder grinding and screening device according to claim 5, characterized in that: A clamping block (1354) fixedly connected to the blocking plate (1352) is provided on one side thereof, and a clamping groove (1353) adapted to the clamping block (1354) is provided below the filter inner ring (135) for clamping the blocking plate (1352).

Images