Grading flour mill for milling graphite

Abstract

The utility model relates to the technical field of graphite flour mills, and discloses a grading flour mill for milling graphite, which comprises a flour mill body, a control box is arranged on the outer side of the flour mill body, a material pipe is arranged at the top of the flour mill body, a hopper communicated with the inside of the material pipe is fixedly mounted at the top of the material pipe, and the control box is arranged on the control box. A material shell is fixedly installed at one end of an outlet of the material pipe, a discharging pipe is fixedly installed in an opening in the bottom of the material shell, a support is fixedly installed at the bottom of the material shell, and a precise grinding assembly is arranged at the bottom of the support. According to the grading flour mill for graphite milling, an electric push rod drives a gear to move upwards, so that the gear is moved out of an inner gear ring, then a milling roller is not transmitted any more, at the moment, a servo motor is started to drive a spiral feeding rod to rotate, powdered ink which is not filtered out can be conveyed upwards, then milling can be conducted again, and the working efficiency is improved. Therefore, the effect of replacing manual feeding back and forth can be achieved, and the automatic machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite powder mills, in particular to a classification powder mill for graphite powder grinding. Background Art

[0002] Graphite is an allotrope of carbon, in the shape of an opaque solid with a grayish-black color. Its chemical properties are stable, corrosion-resistant, and it is not easy to react with chemicals such as acids and alkalis. Graphite has a wide range of applications. It can not only be used as an anti-wear agent, lubricant, etc., but also be used to manufacture crucibles, electrodes, brushes, dry batteries, graphite fibers, and heat exchangers, etc.

[0003] For example, a graphite powder mill for graphite processing disclosed in Chinese Patent with the publication number CN220900641U solves the problem that in the prior art, during multiple powder grinding processes, generally, a storage barrel is placed at the discharge port of the powder mill, and after the previous powder grinding is completely finished, the graphite powder inside the storage barrel is poured into the powder mill for re-powder grinding. Continuous operation cannot be achieved, thereby increasing the operation time and reducing the powder grinding efficiency. A graphite powder mill for graphite processing includes a powder mill body and a feed hopper connected to one side of the powder mill body. The bottom of the powder mill body is connected to a placement table. The feed hopper communicates with the discharge end of the powder mill body. A transfer cylinder corresponding to the bottom position of the discharge end is arranged on one side of the placement table. A sliding base is arranged at the bottom of the transfer cylinder, and a moving block is slidably connected to the top of the sliding base. The structure of the utility model is reasonable, facilitating continuous operation and greatly improving the efficiency of the powder grinding operation.

[0004] During the implementation of this application, the inventor found that there are at least the following problems in this technology: Although the above technical solution can facilitate continuous operation, its operation method mainly relies on manual feeding back and forth, which requires workers to stay beside, unable to meet the current automated production requirements. Therefore, further improvement can be made. Summary of the Utility Model

[0005] To solve the above-mentioned problems, the utility model provides the following technical solution: A classification powder mill for graphite powder grinding includes a powder mill body. A control box is arranged on the outer side of the powder mill body. A material pipe is arranged on the top of the powder mill body. A feed hopper communicating with its interior is fixedly installed at the top of the material pipe. A material shell is fixedly installed at the outlet end of the material pipe. A discharge pipe is fixedly installed in the bottom opening of the material shell. A support is fixedly installed at the bottom of the material shell. A precision grinding assembly is arranged at the bottom of the support.

[0006] As an optimization, the precision milling assembly includes a processing tank fixedly installed inside the bracket, and the bottom of the discharge pipe penetrates and inserts into the processing tank. An installation frame is fixedly installed inside the top of the processing tank. A milling roller is rotatably connected inside the processing tank and below the installation frame. The top of the milling roller is frustum-shaped, which is convenient for toner to fall into the gap between the milling roller and the inner wall of the processing tank. A feeding pipe is fixedly installed at the center of the bottom of the processing tank. A filter screen is embedded inside the end of the feeding pipe inserted into the processing tank. A power assembly for driving the milling roller to rotate is arranged in the middle of the installation frame and above the milling roller.

[0007] As an optimization, the power assembly includes a housing fixedly installed at the center of the installation frame. A servo motor is fixedly installed inside the housing. A turntable is rotatably connected to the bottom side of the housing. An electric push rod is fixedly installed at the bottom side of the turntable. A gear is fixedly installed at the bottom of the telescopic end of the electric push rod. The gear is slidably sleeved outside the output shaft of the servo motor. A top frame is fixedly installed at the top of the milling roller. An internal gear ring is fixedly installed inside the inner ring of the top frame.

[0008] As an optimization, a slideway is opened on the inner wall of the gear. A limiting strip is fixedly installed on the output shaft of the servo motor corresponding to the slideway. The limiting strip is slidably connected inside the slideway. By clamping the limiting strip in the slideway, the gear can be limited, so that the gear can rotate together with the output shaft of the servo motor.

[0009] As an optimization, the gear is located directly above the top frame, and the gear is clamped inside the internal gear ring through the telescopic electric push rod. By starting the electric push rod, the gear can be driven to lift and lower, and then the gear can be clamped downward into the internal gear ring. Therefore, under the action of the servo motor, the milling roller can be driven to rotate inside the processing tank, so as to mill the toner entering the processing tank again.

[0010] As an optimization, milling bars are fixedly installed on the outer side of the milling roller in an array, and the milling bars are spirally wound on the outer side of the milling roller. A plurality of milling columns are rotatably connected to the surface of the milling bars, and the milling columns are rollingly connected to the inner wall of the processing tank. By rotating the milling roller, the milling columns can be driven to roll along the inner wall of the processing tank, so as to mill the toner falling into the gap and further improve the precision of the toner.

[0011] As an optimization, a hole is opened inside the milling roller. A spiral feeding rod is rotatably connected inside the hole. The top of the spiral feeding rod is fixedly connected to the bottom end of the output shaft of the servo motor. The bottom of the spiral feeding rod is located inside the bottom of the processing tank. By starting the servo motor, the spiral feeding rod can be driven to rotate synchronously, so as to re-transmit the toner not filtered by the filter screen to the upper part and mill it again until the high requirements are met.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. For the classification grinding mill for graphite powder grinding, the electric push rod drives the gear to move downward and engage with the internal gear ring. As a result, the grinding roller will rotate together with the gear. Therefore, after starting the servo motor, it will drive the grinding roller to rotate, and then grind the graphite powder that falls into the gap. Moreover, the grinding column will roll along the inner wall of the processing tank, further grinding the graphite powder, thus improving the precision of the graphite powder.

[0014] 2. For the classification grinding mill for graphite powder grinding, when the electric push rod drives the gear to move upward, the gear will be disengaged from the internal gear ring, and thus no longer drive the grinding roller. At this time, starting the servo motor will drive the spiral feeding rod to rotate, so as to convey the unfiltered graphite powder upward for further grinding, which can replace manual feeding back and forth and improve the automation processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic internal structural diagram of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the drive repetitive grinding structure of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the automatic feeding structure of the present utility model;

[0019] Figure 5 is a schematic structural diagram of the grinding roller of the present utility model;

[0020] Figure 6 is of the present utility model Figure 5 partial enlarged schematic diagram of the structure at A in the figure.

[0021] In the figure: 1. Grinding mill body; 2. Control box; 3. Hopper; 4. Material shell; 5. Discharge pipe; 6. Bracket; 7. Precision grinding assembly; 8. Processing tank; 9. Mounting frame; 10. Grinding roller; 11. Feeding pipe; 12. Filter screen; 13. Outer shell; 14. Electric push rod; 15. Gear; 16. Top frame; 17. Internal gear ring; 18. Grinding bar; 19. Grinding column; 20. Spiral feeding rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1-2 , a classification grinding mill for graphite powder grinding, including a grinding mill body 1, a control box 2 is arranged on the outer side of the grinding mill body 1, a material pipe is arranged on the top of the grinding mill body 1, a hopper 3 communicating with its interior is fixedly installed at the top of the material pipe, a material shell 4 is fixedly installed at the outlet end of the material pipe, a discharge pipe 5 is fixedly installed in the bottom opening of the material shell 4, a support 6 is fixedly installed at the bottom of the material shell 4, and a precision grinding assembly 7 is arranged at the bottom of the support 6.

[0024] Please refer to Figure 3-4 , the precision grinding assembly 7 includes a processing tank 8 fixedly installed inside the support 6, and the bottom of the discharge pipe 5 penetrates and inserts into the processing tank 8. An installation frame 9 is fixedly installed inside the top of the processing tank 8. A grinding roller 10 is rotatably connected inside the processing tank 8 and below the installation frame 9. The top of the grinding roller 10 is frustum-shaped, which is convenient for the graphite powder to fall into the gap between the grinding roller 10 and the inner wall of the processing tank 8. A blanking pipe 11 is fixedly installed at the center of the bottom of the processing tank 8. A filter screen 12 is embedded inside the end of the blanking pipe 11 inserted into the processing tank 8. A power assembly for driving the grinding roller 10 to rotate is arranged in the middle of the installation frame 9 and above the grinding roller 10;

[0025] Please refer to Figure 3-4 , the power assembly includes a housing 13 fixedly installed at the center of the installation frame 9. A servo motor is fixedly installed inside the housing 13. A turntable is rotatably connected to the bottom side of the housing 13. An electric push rod 14 is fixedly installed at the bottom side of the turntable. A gear 15 is fixedly installed at the bottom of the telescopic end of the electric push rod 14. The gear 15 is slidably sleeved outside the output shaft of the servo motor. A slideway is opened on the inner wall of the gear 15. A limiting strip is fixedly installed on the output shaft of the servo motor corresponding to the slideway. The limiting strip is slidably connected inside the slideway. By clamping the limiting strip in the slideway, the gear 15 can be limited, so that the gear 15 can rotate together with the output shaft of the servo motor;

[0026] Please refer to Figure 3-4, a top frame 16 is fixedly installed at the top of the grinding roller 10. The gear 15 is located directly above the top frame 16. An internal gear ring 17 is fixedly installed inside the inner ring of the top frame 16. The gear 15 is clamped inside the internal gear ring 17 through a telescopic electric push rod 14. By starting the electric push rod 14, the gear 15 will be driven to move up and down. Furthermore, the gear 15 can be pushed downward into the internal gear ring 17. Therefore, under the action of the servo motor, the grinding roller 10 will be driven to rotate inside the processing tank 8, so as to grind the toner entering the processing tank 8 again;

[0027] Please refer to Figure 3-4 , a duct is formed inside the grinding roller 10. A spiral feeding rod 20 is rotatably connected inside the duct. The top of the spiral feeding rod 20 is fixedly connected to the bottom end of the output shaft of the servo motor. The bottom of the spiral feeding rod 20 is located inside the bottom of the processing tank 8. By starting the servo motor, the spiral feeding rod 20 will be driven to rotate synchronously. Furthermore, the toner that has not been filtered by the filter screen 12 will be retransmitted upward, so as to be ground again until the high requirements are met.

[0028] Please refer to Figure 5-6 , a number of grinding bars 18 are fixedly installed in an array on the outer side of the grinding roller 10. The grinding bars 18 are spirally arranged on the outer side of the grinding roller 10. A number of grinding columns 19 are rotatably connected to the surface of the grinding bars 18. The grinding columns 19 are in rolling connection with the inner wall of the processing tank 8. By the rotation of the grinding roller 10, the grinding columns 19 will be driven to roll along the inner wall of the processing tank 8. Furthermore, the toner in the adjusted gap will be ground, further improving the precision of the toner.

[0029] During use, first pour the graphite blocks to be processed into the hopper 3, and then process them through the pulverizer. After processing, the toner will fall into the processing tank 8 and will fall along the inclined surface at the top of the grinding roller 10 into the gap between the grinding roller 10 and the processing tank 8. At this time, by starting the electric push rod 14, the gear 15 will be driven to be pushed downward into the internal gear ring 17. Furthermore, the top frame 16 will be driven to rotate synchronously with the gear 15. Then start the servo motor to drive the gear 15 to rotate. Furthermore, the grinding roller 10 will be driven to rotate through the top frame 16. Therefore, the toner falling into the gap will be ground, and the toner will be further ground by the grinding columns 19 to improve the precision of the toner;

[0030] The toner after being milled again will fall downward along the feeding pipe 11 and pass through the filter screen 12 for filtering, so that the toner that does not meet the required precision accumulates at the bottom inside the processing tank 8. At this time, starting the electric push rod 14 drives the gear 15 to move upward, and then the gear 15 is removed from the internal gear ring 17, so the milling roller 10 is no longer driven. At this time, starting the servo motor drives the spiral feeding rod 20 to rotate, so the toner that does not meet the required precision is conveyed upward through the rotating spiral feeding rod 20 and then milled again until the requirements are met.

[0031] In summary, for this classification grinding machine for graphite powder grinding, the electric push rod 14 drives the gear 15 to be clamped downward into the internal gear ring 17, and then the milling roller 10 rotates together with the gear 15. Therefore, after starting the servo motor, it drives the milling roller 10 to rotate, and then mills the toner that falls into the gap, and makes the milling column 19 roll along the inner wall of the processing tank 8, and further mills the toner, so as to improve the precision of the toner.

[0032] The electric push rod 14 drives the gear 15 to move upward, so the gear 15 is removed from the internal gear ring 17, and then the milling roller 10 is no longer driven. At this time, starting the servo motor drives the spiral feeding rod 20 to rotate, so the unfiltered toner is conveyed upward, and then can be milled again, so as to play the role of replacing manual feeding back and forth and improve the automation processing efficiency.

[0033] In the description of the present invention, unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description of the specification and the drawings.

[0035] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A classifying mill for grinding graphite, comprising a mill body (1), characterized in that: A control box (2) is arranged outside the grinding mill body (1), a material pipe is arranged on the top of the grinding mill body (1), a material hopper (3) connected to the inside of the material pipe is fixedly installed on the top of the material pipe, a material shell (4) is fixedly installed at one end of the outlet of the material pipe, a discharge pipe (5) is fixedly installed in the bottom opening of the material shell (4), a bracket (6) is fixedly installed at the bottom of the material shell (4), and a precision grinding component (7) is arranged at the bottom of the bracket (6).

2. The classifying mill for graphite grinding according to claim 1, characterized in that: The precision grinding assembly (7) includes a processing tank (8) fixedly mounted on the inner side of a bracket (6), and the bottom of the discharge pipe (5) is inserted through the processing tank (8), a mounting frame (9) is fixedly mounted on the top of the processing tank (8), a grinding roller (10) is rotatably connected inside the processing tank (8) and located below the mounting frame (9), and the top of the grinding roller (10) is truncated, a feed pipe (11) is fixedly mounted at the bottom center of the processing tank (8), a filter screen (12) is embedded in one end of the feed pipe (11) inserted into the processing tank (8), and a power assembly for driving the grinding roller (10) to rotate is provided in the middle of the mounting frame (9) and located above the grinding roller (10).

3. The classifying mill for graphite grinding according to claim 2, characterized in that: The power assembly comprises a housing (13) fixedly mounted at the center of a mounting frame (9), a servo motor fixedly mounted inside the housing (13), a turntable rotatably connected to the bottom side of the housing (13), an electric push rod (14) fixedly mounted on the bottom side of the turntable, a gear (15) fixedly mounted at the bottom of the telescopic end of the electric push rod (14), and the gear (15) is slidably sleeved on the outside of an output shaft of the servo motor, a top frame (16) fixedly mounted on the top of the grinding roller (10), and an inner gear ring (17) fixedly mounted inside the inner ring of the top frame (16).

4. The classifying mill for graphite grinding according to claim 3, characterized in that: A slideway is provided on the inner wall of the gear (15); a limit bar is fixedly mounted on the outer side of the output shaft of the servo motor corresponding to the slideway; the limit bar is slidably connected to the inside of the slideway.

5. The classifying mill for graphite grinding according to claim 4, characterized in that: The gear (15) is located directly above the top frame (16), and the gear (15) is clamped in the inner gear ring (17) via a telescopic electric push rod (14).

6. The classifying mill for graphite grinding according to claim 5, characterized in that: The outer array of the grinding roller (10) is fixedly mounted with grinding bars (18), and the spiral disc of the grinding bars (18) is on the outer side of the grinding roller (10). The surface of the grinding bars (18) is rotatably connected to a plurality of grinding columns (19), and the grinding columns (19) are rollingly connected to the inner wall of the processing tank (8).

7. The classifying mill for graphite grinding according to claim 6, characterized in that: A hole is provided inside the grinding roller (10), a spiral loading rod (20) is rotatably connected inside the hole, the top of the spiral loading rod (20) is fixedly connected to the bottom end of the servo motor output shaft, and the bottom of the spiral loading rod (20) is located inside the bottom of the processing tank (8).

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