Metal powder grinding device

Abstract

The invention discloses a metal powder grinding device and relates to the technical field of metal powder.The device comprises a shell and a motor fixedly connected to the shell, a feeding port is formed in the top of the shell, a discharging port is formed in the lower portion of the shell, an upper grinding area is arranged in the shell, and the upper grinding area communicates with the feeding port; the lower grinding area is arranged at the position of the discharge hole; the screening area is arranged between the upper grinding area and the lower grinding area; a rotating shaft is rotationally connected into the shell and connected with the motor, and the upper grinding area, the lower grinding area and the screening area are connected through the rotating shaft; and an air draft piece is arranged on one side of the shell and communicates with the upper grinding area, the screening area and the lower grinding area. After metal powder enters the device, the metal powder is subjected to primary grinding through the upper grinding area, then the metal powder is screened through the screening area, and finally the metal powder is subjected to final grinding, so that the grinding efficiency is improved, dust in the shell is extracted through the air draft piece, and pollution is prevented.

Description

Technical Field

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

[0002] Metal powder refers to a group of metal particles with a size of less than 1mm. It includes single metal powder, alloy powder and certain refractory compound powders with metallic properties. It is the main raw material for powder metallurgy. Metallic elements are generally silvery white. When metal is under certain conditions, it is a black powder. Most metal powders are black. At present, many methods have been developed for the preparation of metal powders, which are mainly divided into physical and chemical methods and mechanical methods according to the production principle.

[0003] With the advancement of science and technology and the development of industry, metal powder, as an important raw material, has been widely used in many fields. However, traditional metal powder grinding devices often have problems such as low grinding efficiency, insufficient grinding, and easy dust pollution during the grinding process, which makes it difficult to meet the modern industry's demand for high-quality and high-efficiency metal powder. Summary of the invention

[0004] The present invention aims at solving the above technical problems, overcomes the disadvantages of the prior art and provides a metal powder grinding device.

[0005] In order to solve the above technical problems, the present invention provides a metal powder grinding device.

[0006] Technical effect: After the metal powder enters the device, it is first ground through the upper grinding area, and then the ground metal powder enters the screening area for screening. The metal powder that meets the requirements enters the lower grinding area, and the metal powder that does not meet the requirements is ground again in the screening area. Finally, the metal powder is finally ground through the lower grinding area, so that the metal powder is fully ground, the grinding efficiency is improved, and the required metal powder is obtained. The dust of the device is extracted and filtered through the exhaust parts on the device to prevent dust from polluting the air.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions:

[0008] A metal powder grinding device comprises a housing and a motor fixedly connected to the housing, a feed port is arranged at the top of the housing, a discharge port is arranged at the bottom of the housing, an upper grinding area is arranged in the housing, the upper grinding area is communicated with the feed port, and is used for initial grinding of metal powder;

[0009] The lower grinding area is arranged at the discharge port and is used for secondary grinding of the metal powder;

[0010] A screening area, arranged between the upper grinding area and the lower grinding area, for screening metal powder;

[0011] A rotating shaft is rotatably connected in the shell, the rotating shaft is connected to the motor, and the upper grinding area, the lower grinding area and the screening area are connected through the rotating shaft;

[0012] An exhaust piece is provided on one side of the shell, and the exhaust piece is communicated with the upper grinding area, the screening area and the lower grinding area respectively, and is used for sucking out the dust in the shell to prevent dust pollution.

[0013] Further configuration: a material discharge tray fixedly connected to the shell body is provided in the upper grinding area, an upper grinding tube is provided at the bottom of the material discharge tray, and a material discharge port is provided at the connection between the material discharge tray and the upper grinding tube;

[0014] An upper grinding rolling stone is arranged in the upper grinding tube, and a plurality of grinding blocks are fixedly connected to the inner wall of the upper grinding tube. The rotating shaft passes through the upper grinding rolling stone, and the upper grinding rolling stone is fixedly connected to the rotating shaft.

[0015] In the aforementioned metal powder grinding device, a plurality of evenly distributed dust holes are provided on one side of the outer wall of the upper grinding tube.

[0016] It is further arranged that: a screening pipe fixedly connected to the shell is provided in the screening area, and a screening opening communicating with the screening pipe and the upper grinding area is provided;

[0017] A screening roller fixedly connected to the rotating shaft is arranged in the screening tube. The screening roller is in the shape of a trapezoidal cone. A grinding stone is arranged on the outer wall below the screening roller. The interior of the screening roller is hollow. A plurality of evenly distributed screening holes are formed on the arc surface of the screening roller and the bottom of the screening roller.

[0018] It is further arranged that: a lower grinding tube fixedly connected to the shell is provided in the lower grinding area, and a grinding port communicating with the screening area is provided between the lower grinding tube and the screening area;

[0019] A connecting rod slidably connected to the rotating shaft is arranged in the lower grinding tube, a lower grinding rod is arranged on the connecting rod for grinding metal powder, and a driving member for driving the connecting rod to slide is arranged in the rotating rod.

[0020] The metal powder grinding device described above, the driving part includes a first motor fixedly connected to the rotating shaft, a slide groove is opened in the rotating shaft, a connecting groove communicated with the slide groove is opened on the outer wall of the rotating shaft, a lead screw is rotatably connected in the slide groove, the lead screw is connected to the output shaft of the first motor, a slider is threadedly connected on the lead screw, the slider is slidably connected in the slide groove, the slider is fixedly connected to the connecting rod, and the connecting rod is arranged in the connecting groove.

[0021] In the aforementioned metal powder grinding device, a rotating ring rotatably connected to the bottom of the lower grinding tube is provided, and a plurality of grinding outlets are equidistantly distributed, the grinding outlets are arranged around the center of the rotating shaft, and the rotating shaft is located inside the rotating ring;

[0022] The outer wall of the rotating ring is respectively provided with a plurality of equally distributed blocking plates, which are adapted to the grinding outlets. The outer wall of the shell is provided with a rotating hole communicating with the lower grinding tube, and a toggle rod is provided in the rotating hole, which is fixedly connected to the rotating ring.

[0023] Further configuration: the air exhaust member comprises a box body fixedly connected to the shell body, a filter element net is arranged in the box body, and the filter element net is in a cube shape;

[0024] The filter element net is provided with a first pipe communicating with the upper grinding area and a second pipe communicating with the lower grinding area, the box body is provided with an exhaust fan for extracting dust inside the box body, and the exhaust fan is provided with a filter bag.

[0025] Further configuration: a storage bucket threadably connected to the discharge port is provided on the discharge port.

[0026] Further configuration: a plurality of stirring rods are arranged on the rotating shaft.

[0027] The present invention has the following beneficial effects:

[0028] (1) In the present invention, an upper grinding area, a screening area and a lower grinding area are sequentially arranged in the shell from top to bottom. The metal powder first enters the upper grinding area from the top of the shell to be broken up, ground and ground into the required granular shape. At this time, the particles enter the screening area, and the particles that meet the requirements are screened in the screening area. At the same time, the particles that do not meet the requirements will be ground again in the screening area. The qualified particles and the particles that are ground again are screened and finally enter the lower grinding area. The particles are finally ground by the lower grinding area to become the required finished metal powder.

[0029] (2) In the present invention, a box body is arranged on the outer wall of the shell body, and the air inlet of the exhaust fan on the box body is connected to the box body. Since the first pipe, the second pipe and the third pipe on the filter element net are respectively connected to the upper grinding area, the screening area and the lower grinding area, the exhaust fan draws the dust in the shell into the box body through the first pipe, the second pipe and the third pipe, and the dust particles are filtered through the filter element net. Then, the filtered dust particles enter the filter bag through the air outlet of the exhaust fan, and the dust is filtered again, thereby collecting the dust.

[0030] (3) In the present invention, metal powder enters the upper grinding area and first falls on the discharge plate. The rotating shaft drives the stirring rod to break up the metal powder in the discharge plate. Then the broken metal powder enters the upper grinding tube from the discharge port. The upper grinding roller grinds the metal powder. The ground metal powder enters the screening tube from the screening opening. The screening roller screens the ground metal powder. At the same time, the grinding stone on the screening roller can also grind the metal powder. The screened metal powder enters the lower grinding tube from the grinding port. The adjusting connecting rod drives the lower grinding rod to perform the final grinding on the metal powder.

[0031] (4) In the present invention, the connecting rod is arranged to be slidably connected to the rotating shaft, and the height of the lower grinding rod can be adjusted according to demand. The grinding outlet can facilitate the outflow of metal powder after grinding. The toggle rod is arranged to drive the rotating ring, and the blocking plate on the rotating ring can block the grinding outlet to prevent the metal powder from flowing out during grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention is further described below in conjunction with the accompanying drawings.

[0033] Figure 1 is a schematic structural diagram of Example 1;

[0034] Figure 2 is a schematic diagram of the structure of the upper grinding area in Example 1;

[0035] Figure 3 It is a schematic diagram of the internal structure of the embodiment;

[0036] Figure 4 Schematic diagram of the structure of the lower grinding tube in Example 1;

[0037] Figure 5 It is a schematic diagram of the filter element network structure in the box body in Example 1.

[0038] In the figure, 1, housing; 11, upper grinding area; 110, unloading plate; 111, upper grinding tube; 112, upper grinding rolling stone; 113, grinding block; 114, dust hole; 115, screening tube; 116, screening opening; 117, screening roller; 118, screening hole; 119, grinding stone; 120, grinding opening; 121, slider; 122, connecting groove; 123, slide groove; 124, lead screw; 125, connecting rod; 126, grinding rod; 1 27. Grinding outlet; 128. First motor; 129. Stirring rod; 12. Screening area; 13. Lower grinding area; 131. Lower grinding tube; 132. Rotating ring; 133. Blocking plate; 134. Toggle rod; 14. Rotating shaft; 15. Feeding port; 2. Feeding port; 3. Discharging port; 4. Box body; 41. Filter element net; 5. First pipeline; 6. Second pipeline; 7. Exhaust fan; 8. Filter bag; 9. Motor; 10. Storage barrel; 101. Rotating hole. DETAILED DESCRIPTION

[0039] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings. In order to make the purpose, technical solutions and advantages of the present invention clearer, a detailed description is given below in conjunction with the accompanying drawings and specific implementations. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0040] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to an element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] This embodiment provides a metal powder grinding device, such as Figures 1 to 5 As shown: it includes a shell 1 and a motor 9 fixedly connected to the shell 1, a feed port 2 is provided at the top of the shell 1, metal powder enters the device from the top of the shell 1, a discharge port 3 is provided at the bottom of the shell 1, the ground metal powder is discharged from the discharge port 3, and a storage barrel 10 threadedly connected to the discharge port 3 is provided.

[0043] In order to improve the grinding efficiency and make the grinding more sufficient, an upper grinding area 11, a screening area 12 and a lower grinding area 13 are sequentially arranged in the shell 1 from top to bottom. The upper grinding area 11 is communicated with the feed port 2 and is used for the initial grinding of the metal powder. A rotating shaft 14 is rotatably connected in the shell 1, and the rotating shaft 14 is connected to the motor 9. The upper grinding area 11, the lower grinding area 13 and the screening area 12 are connected through the rotating shaft 14. The metal powder enters the upper grinding area 11 from the top of the shell 1 first, and the metal powder is ground for the first time. The ground metal powder enters the screening area 12 and is screened in the screening area 12. The metal powder that meets the requirements enters the lower grinding area 13, and the metal powder that does not meet the requirements is ground again in the screening area 12 until it meets the requirements. Finally, the metal powder that meets the requirements is finally ground in the lower grinding area 13.

[0044] At the same time, an exhaust member is provided on the right side of the shell 1, which is communicated with the upper grinding area 11, the screening area 12 and the lower grinding area 13 respectively, and is used to suck out the dust in the shell 1 to prevent dust pollution.

[0045] The exhaust component includes a box body 4 fixedly connected to the shell body 1, and a filter element net 41 is arranged inside the box body 4, and the filter element net 41 is in a cube shape; a first pipe 5 communicating with the upper grinding area 11 and a second pipe 6 communicating with the lower grinding area 13 are arranged on the filter element net 41, and an exhaust fan 7 for extracting dust from the box body 4 is arranged on the box body 4, and a filter bag 8 is arranged on the exhaust fan 7.

[0046] With such arrangement, the dust generated during the grinding of the metal powder is exhausted into the box body 4 through the exhaust port of the exhaust fan 7. Since the first pipe 5 is connected to the upper grinding area 11, the second pipe 6 is connected to the lower grinding area 13, and the first pipe 5 and the second pipe 6 are respectively arranged in the box body 4, the dust is respectively drawn into the box body 4 from the first pipe 5 and the second pipe 6, and the dust particles are filtered through the filter element net 41 in the box body 4. Secondly, the gas entering the exhaust fan 7 enters the filter bag 8 from the air outlet of the exhaust fan 7, and the dust particles are filtered again to prevent pollution caused by dust.

[0047] A lower material tray 110 fixedly connected to the shell 1 is provided in the upper grinding area 11, an upper grinding tube 111 is provided at the bottom of the lower material tray 110, and a lower material port 15 is provided at the connection between the lower material tray 110 and the upper grinding tube 111; an upper grinding roller 112 is provided in the upper grinding tube 111, and in order to enhance the grinding effect, a plurality of grinding blocks 113 fixedly connected to the inner wall of the upper grinding tube 111 are provided in the upper grinding tube 111, and the rotating shaft 14 passes through the upper grinding roller 112, and the upper grinding roller 112 is fixedly connected to the rotating shaft 14.

[0048] In addition, a plurality of evenly distributed dust holes 114 are provided on one side of the outer wall of the upper grinding tube 111. A plurality of stirring rods 129 are provided on the rotating shaft 14.

[0049] With such arrangement, the metal powder enters the upper grinding tube 111 through the discharge port 15 on the discharge tray 110, and is ground by the upper grinding rolling stone 112 and the plurality of grinding blocks 113 in the upper grinding tube 111, so that the metal powder is ground for the first time, and the dust hole 114 on one side of the outer wall of the upper grinding tube 111 facilitates the discharge of dust from the upper grinding tube 111, and secondly, it can play a role in heat dissipation. At the same time, the plurality of stirring rods 129 on the rotating shaft 14 can stir and disperse the metal powder.

[0050] The screening area 12 is arranged between the upper grinding area 11 and the lower grinding area 13, and is used for screening metal powder. A screening tube 115 fixedly connected to the shell 1 is provided in the screening area 12, and a screening opening 116 communicating with the upper grinding area 11 is provided between the screening tube 115 and the upper grinding area 11; a screening roller 117 fixedly connected to the rotating shaft 14 is provided in the screening tube 115, and the screening roller 117 is a trapezoidal cone. A grinding stone 119 is provided on the outer wall below the screening roller 117. The interior of the screening roller 117 is hollow, and a plurality of evenly distributed screening holes 118 are formed on the arc surface of the screening roller 117 and the bottom of the screening roller 117.

[0051] With such arrangement, the ground metal powder enters the screening tube 115 from the screening opening 116, and the screened metal powder falls onto the screening roller 117, and is screened through a plurality of evenly distributed screening holes 118 on the screening roller 117. Since the interior of the screening roller 117 is hollow, the metal powder that meets the requirements will enter the interior of the screening roller 117 through the screening holes 118 on the curved surface of the screening roller 117, and then enter the lower grinding area 13 through the screening holes 118 at the bottom of the screening roller 117. The metal powder that does not meet the requirements will slide down on both sides of the screening roller 117, and will be ground by the grinding stone 119 on the outer wall below the screening roller 117 until it meets the requirements.

[0052] A lower grinding tube 131 fixedly connected to the shell 1 is provided in the lower grinding area 13, and a grinding port 120 communicating with the screening area 12 is provided between the lower grinding tube 131 and the screening area 12; a connecting rod 125 slidably connected to the rotating shaft 14 is provided in the lower grinding tube 131, and a lower grinding rod 126 is provided on the connecting rod 125 for grinding metal powder, and a driving member for driving the connecting rod 125 to slide is provided in the rotating rod.

[0053] In addition, the driving member includes a first motor 128 fixedly connected to the rotating shaft 14, a slide groove 123 is opened in the rotating shaft 14, and a connecting groove 122 communicated with the slide groove 123 is opened on the outer wall of the rotating shaft 14. A lead screw 124 is rotatably connected in the slide groove 123, and the lead screw 124 is connected to the output shaft of the first motor 128. A slider 121 is threadedly connected to the lead screw 124, and the slider 121 is slidably connected in the slide groove 123. The slider 121 is fixedly connected to the connecting rod 125, and the connecting rod 125 is arranged in the connecting groove 122. A rotating ring 132 rotatably connected to the lower grinding tube 131 is provided at the bottom thereof, and a plurality of equally spaced grinding outlets 127 are provided, the grinding outlets 127 are arranged around the center of the rotating shaft 14, and the rotating shaft 14 is located in the rotating ring 132; a plurality of equally spaced blocking plates 133 are provided on the outer wall of the rotating ring 132, the blocking plates 133 are adapted to the grinding outlets 127, a rotating hole 101 communicating with the lower grinding tube 131 is provided on the outer wall of the shell 1, a toggle rod 134 is provided in the rotating hole 101, and the toggle rod 134 is fixedly connected to the rotating ring 132.

[0054] With such arrangement, the metal powder that meets the requirements after screening enters the lower grinding tube 131 through the grinding port 120, and is driven by the first motor 9128 to make the lead screw 124 threadedly connected to the slider 121 slide in the slide groove 123 in the rotating shaft 14. Since the rotating shaft 14 is provided with a connecting groove 122 that communicates with the slide groove 123, the connecting rod 125 slides in the connecting groove 122, and the connecting rod 125 is connected to the slider 121, so the slider 121 drives the connecting rod 125 to slide, and the lower grinding rod 126 is driven by the connecting rod 125 to adjust the height, so as to finally grind the metal powder in the lower grinding tube 131. By toggling the toggle rod 134, the rotating ring 132 is driven to rotate at the bottom of the lower grinding tube 131, and the rotating ring 132 drives a number of equidistantly distributed blocking plates 133 to block and open a number of equidistantly distributed grinding outlets 127. When grinding is required, the grinding outlet 127 is blocked, and when unloading is required, the grinding outlet 127 is opened to collect fully ground metal powder and improve grinding efficiency.

[0055] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. 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 device, comprising a housing (1) and a motor (9) fixedly connected to the housing (1), characterized in that: The top of the shell (1) is provided with a feed port (2), the bottom of the shell (1) is provided with a discharge port (3), an upper grinding area (11) is provided inside the shell (1), and the upper grinding area (11) is communicated with the feed port (2) and is used for the initial grinding of metal powder; A lower grinding zone (13), arranged at the position of the discharge port (3), for performing secondary grinding on the metal powder; A screening area (12), arranged between the upper grinding area (11) and the lower grinding area (13), for screening metal powder; A rotating shaft (14) is rotatably connected inside the housing (1), the rotating shaft (14) is connected to the motor (9), and the upper grinding area (11), the lower grinding area (13) and the screening area (12) are connected via the rotating shaft (14); An air suction piece is provided on one side of the shell (1), and the air suction piece is respectively connected to the upper grinding area (11), the screening area (12) and the lower grinding area (13), and is used to suck out dust in the shell (1) to prevent dust pollution.

2. A metal powder grinding device according to claim 1, characterized in that: The upper grinding area (11) is provided with a lower material tray (110) fixedly connected to the shell (1); an upper grinding tube (111) is provided at the bottom of the lower material tray (110); a lower material port (15) is provided at the connection between the lower material tray (110) and the upper grinding tube (111); an upper grinding rolling stone (112) is provided in the upper grinding tube (111), and a plurality of grinding blocks (113) fixedly connected to the inner wall of the upper grinding tube (111) are provided; the rotating shaft (14) passes through the upper grinding rolling stone (112), and the upper grinding rolling stone (112) is fixedly connected to the rotating shaft (14).

3. A metal powder grinding device according to claim 2, characterized in that: A plurality of evenly distributed dust holes (114) are provided on one side of the outer wall of the upper grinding tube (111).

4. A metal powder grinding device according to claim 1, characterized in that: The screening area (12) is provided with a screening pipe (115) fixedly connected to the shell (1), and a screening opening (116) communicating with the screening pipe (115) and the upper grinding area (11) is provided between the screening pipe (115); A screening roller (117) fixedly connected to the rotating shaft (14) is arranged in the screening tube (115); the screening roller (117) is in the shape of a trapezoidal cone; a grinding stone (119) is arranged on the outer wall below the screening roller (117); the interior of the screening roller (117) is hollow; and a plurality of evenly distributed screening holes (118) are formed on the arc surface of the screening roller (117) and the bottom of the screening roller (117).

5. The metal powder grinding device according to claim 1, characterized in that: The lower grinding zone (13) is provided with a lower grinding tube (131) fixedly connected to the shell (1), and a grinding port (120) communicating with the lower grinding tube (131) is provided between the screening zone (12); A connecting rod (125) slidably connected to the rotating shaft (14) is provided in the lower grinding tube (131), a lower grinding rod (126) is provided on the connecting rod (125) for grinding metal powder, and a driving member for driving the connecting rod (125) to slide is provided in the rotating rod.

6. A metal powder grinding device according to claim 5, characterized in that: The driving member comprises a first motor (128) fixedly connected to the rotating shaft (14); a slide groove (123) is provided in the rotating shaft (14); a connecting groove (122) communicating with the slide groove (123) is provided on the outer wall of the rotating shaft (14); a lead screw (124) is rotatably connected in the slide groove (123); the lead screw (124) is connected to the output shaft of the first motor (128); a slider (121) is threadedly connected to the lead screw (124); the slider (121) is slidably connected in the slide groove (123); the slider (121) is fixedly connected to the connecting rod (125), and the connecting rod (125) is arranged in the connecting groove (122).

7. A metal powder grinding device according to claim 5, characterized in that: The bottom of the lower grinding tube (131) is provided with a rotating ring (132) rotatably connected thereto, and is provided with a plurality of grinding outlets (127) distributed at equal intervals, the grinding outlets (127) are arranged around the center of the rotating shaft (14), and the rotating shaft (14) is located inside the rotating ring (132); The outer wall of the rotating ring (132) is respectively provided with a plurality of equally spaced blocking plates (133), the blocking plates (133) being adapted to the grinding outlet (127), the outer wall of the housing (1) being provided with a rotating hole (101) communicating with the lower grinding tube (131), a toggle rod (134) being provided in the rotating hole (101), and the toggle rod (134) being fixedly connected to the rotating ring (132).

8. The metal powder grinding device according to claim 1, characterized in that: The air extraction member comprises a box body (4) fixedly connected to the housing (1), a filter element net (41) is arranged in the box body (4), and the filter element net (41) is in the shape of a cube; The filter element net (41) is provided with a first pipe (5) communicating with the upper grinding area (11) and a second pipe (6) communicating with the lower grinding area (13); the box body (4) is provided with an exhaust fan (7) for extracting dust from inside the box body (4); and the exhaust fan (7) is provided with a filter bag (8).

9. The metal powder grinding device according to claim 1, characterized in that: The discharge port (3) is provided with a storage bucket (10) threadably connected thereto.

10. The metal powder grinding device according to claim 1, characterized in that: A plurality of stirring rods (129) are provided on the rotating shaft (14).

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