Copper powder grinding and filtering device

Abstract

The utility model discloses a copper powder grinding filter device, including base, grinder body and filter component, the base is equipped with the first motor for driving grinder body rotation, and the grinder body has the grinding cavity, and the filter component includes the fixed lid of grinder body one end, and the fixed lid has the powder outlet channel and the air inlet channel, is equipped with the filter screen on the powder outlet channel, and the export of air inlet channel is located below the filter screen, and the outside of fixed lid is equipped with the air outlet fan of the communication powder outlet channel and the air inlet fan of the communication air inlet channel, is equipped with the scraper on the filter screen, and the wind power of air inlet fan will big granule copper material blow back to the middle part of grinder body again and carry out the grinding to big granule's copper material again, has realized always let copper material evenly distribute the inside of grinder body, has solved the existing because the suction of air outlet fan can let copper material always be in the side close to the filter screen, and the uneven distribution of copper material leads to the serious wear and tear of one part in grinder body, has reduced the service life of grinder body.

Description

Technical Field

[0001] This utility model relates to the field of copper powder grinding machines, and in particular to a copper powder grinding and filtering device. Background Technology

[0002] A grinding mill is a common piece of equipment used to grind granular or blocky objects. Copper powder processing also requires grinding, and the process of grinding from coarse copper powder to fine copper powder is relatively slow. However, some existing copper powder grinding mills generally grind vertically, which limits the internal space and reduces grinding efficiency. At the same time, the copper powder particles at the discharge port are not further filtered, resulting in uneven quality of copper powder particles. Therefore, this utility model proposes a copper powder grinding mill.

[0003] The existing publication number CN218132286U discloses a copper powder grinding mill. First, the copper powder to be ground is put into the grinding mill body through a hopper. Then, the first motor is started, and the rotation of the first motor drive shaft drives the rotation of the drive gear, which in turn drives the rotation of the meshing toothed ring, thereby driving the grinding mill body to rotate. This causes the grinding balls inside to continuously impact the copper powder after the fixed block is lifted, achieving the grinding effect. Next, the fan is started to continuously absorb the ground copper powder inside, which is then filtered through a filter screen. At the same time, the second motor is started, and the rotation of the second motor drive shaft drives the high-speed rotation of the eccentric wheel, which continuously impacts the filter screen, achieving a vibration effect and shaking off larger particles on the filter screen. Finally, the fan discharges and collects the filtered copper powder.

[0004] However, the existing system causes the copper material to always be on the side closest to the filter screen due to the suction of the exhaust fan. This uneven distribution of copper material leads to severe wear in one part of the grinding machine. Utility Model Content

[0005] The purpose of this invention is to provide a copper powder grinding and filtering device that solves the problem that the suction force of the exhaust fan causes the copper material to always be on the side close to the filter screen, resulting in uneven distribution of copper material and severe wear in one part of the grinding machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a copper powder grinding and filtering device, comprising a base, a grinding machine body, and a filtering assembly. The base is provided with a first motor for driving the grinding machine body to rotate. The grinding machine body has a grinding chamber. The filtering assembly includes a fixed cover located at one end of the grinding machine body. The fixed cover has a powder outlet channel and an air inlet channel. A filter screen is provided on the powder outlet channel. The outlet of the air inlet channel is located below the filter screen. An air outlet fan communicating with the powder outlet channel and an air inlet fan communicating with the air inlet channel are provided on the outside of the fixed cover. A scraper is provided on the filter screen.

[0007] Furthermore, the filter screen is provided with a vibration triggering platform, the vibration triggering platform has a first chamfer, and the outer end of the scraper is provided with an elastic striking element, which slides over the vibration triggering platform to generate impact vibration.

[0008] Furthermore, the striking element includes a spring and a trigger hammer, the spring being disposed at the outer end of the scraper, the trigger hammer being disposed on the spring, and the trigger hammer having a second chamfer opposite to the first chamfer.

[0009] Furthermore, a steel brush is provided on the contact surface between the scraper and the filter screen.

[0010] Furthermore, a baffle plate is provided between the filter screen and the outlet of the air inlet channel.

[0011] Furthermore, multiple fixing blocks are uniformly fixedly connected to the inner wall of the grinding machine body, and multiple grinding balls are arranged inside the grinding machine body.

[0012] Furthermore, a feeding hopper is provided at one end of the grinding machine body away from the fixed cover, and the feeding hopper is connected to the grinding chamber.

[0013] Furthermore, the outer circumferential surface of the grinding machine body is provided with a toothed ring, which is connected to the first motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Copper powder is produced by grinding the material in the grinding machine body. The exhaust fan draws the copper powder out of the grinding machine body through the powder outlet channel. At the same time, the scraper on the filter screen rotates continuously, scraping off large particles attached to the filter screen. As the scraper rotates, it carries the large copper particles to the air inlet channel. Then, the airflow from the air inlet fan blows the large copper particles back to the center of the grinding machine body for further grinding. This ensures that the copper material is always evenly distributed inside the grinding machine body. This solves the problem of existing grinding machines where the suction force of the exhaust fan keeps the copper material close to the filter screen, resulting in uneven distribution of copper material and severe wear in one part of the grinding machine body, which reduces the service life of the grinding machine body. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the internal structure of the grinding machine body of this utility model;

[0018] Figure 2 This is a front view of a copper powder grinding and filtering device according to the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the filter screen of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the elastic striking component of this utility model;

[0021] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0022] In the diagram: 1. Base, 2. Grinding machine body, 21. Grinding chamber, 3. Filter assembly, 31. Fixed cover, 311. Powder outlet channel, 312. Air inlet channel, 32. Filter screen, 312. Vibration triggering platform, 313. First chamfer, 33. Air outlet fan, 34. Air inlet fan, 35. Scraper, 36. Elastic striking element, 361. Spring, 362. Trigger hammer, 363. Second chamfer, 37. Baffle plate, 4. First motor, 5. Fixed block, 6. Grinding ball, 7. Feed hopper, 8. Toothed block ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0024] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0025] like Figures 1 to 5As shown, this utility model provides a copper powder grinding and filtering device, including a base 1, a grinding machine body 2, and a filtering component 3. The grinding machine body 2 is a horizontal grinding machine. The continuous rotation of the grinding machine causes the copper material inside the grinding machine body 2 to collide and generate copper powder. The filtering component 3 is used to filter out large particles of copper material that have not been completely ground. The base 1 is equipped with a first motor 4 for driving the grinding machine body 2 to rotate. The grinding machine body 2 has a grinding chamber 21 inside. The filtering component 3 includes a fixed cover 31 located at one end of the grinding machine body 2. The fixed cover 31 is a circular cover that can cover one end of the grinding machine body 2 and can be detached from the grinding machine body 2. It can be fixed to the grinding machine body 2 by threaded connection and snap-fit. The interior of the fixed cover 31 has a horizontal plate that divides the interior of the fixed cover 31 into a powder outlet channel 311 and an air inlet channel. The powder outlet channel 311 is located above the air inlet channel, and the size of the powder outlet channel 311 is larger than that of the air inlet channel. The input port of channel 311 is connected to the grinding chamber 21 of the grinding machine body 2, and the output port is connected to the outside through a pipe. A filter screen 32 is installed at the input port of the powder outlet channel 311. Copper powder can pass through the filter screen 32, while large copper particles are blocked by the screen. An exhaust fan 33 is connected to the output port of the powder outlet channel 311. The exhaust fan 33 blows air out of the grinding machine body 2, which serves to draw the copper powder out of the grinding machine body 2. The user places the copper powder container in the exhaust fan. The copper powder is collected at the air outlet of the machine 33. The air intake fan connected to the outside of the fixed cover 31 is connected to the air intake channel 34312 through the pipe. The air intake fan blows air into the grinding machine body 2. The output port of the air intake channel 34312 is flush with the outer surface of the filter screen 32 and located below the filter screen 32. A scraper 35 is provided on the filter screen 32. The scraper 35 rotates in a circle and the sweeping surface sweeps across the surface of the filter screen 32 and the output port of the air intake channel 34312.

[0026] The exhaust fan directs the airflow outward from the grinding machine body 2, drawing copper powder from inside the grinding machine body 2 into the powder outlet channel 311. The powder is then discharged back into the grinding machine body 2 by the exhaust fan, completing the collection process. Larger copper particles are also drawn by the exhaust fan and adhere to the filter screen 32. At this point, a rotating scraper 35 removes the large copper particles adsorbed on the filter screen 32. During the scraping process, the large copper particles are carried out of the filter screen 32. The suction force of the exhaust fan 33 on the large copper particles decreases, and they automatically fall to the bottom of the grinding machine body 2. In this invention, there is an air inlet channel 34312 and an air inlet fan below the filter screen 32. The fallen large copper particles are blown back to the middle of the grinding machine body 2 by the air inlet fan for grinding.

[0027] This invention utilizes a dual screening mechanism formed by the negative pressure suction of the exhaust fan and the physical interception of the filter screen 32. Fine powder is quickly discharged and collected through the powder outlet channel 311, while large copper particles are precisely trapped on the surface of the filter screen 32, effectively improving material separation accuracy and collection efficiency. Secondly, the circular motion of the scraper 35 achieves automatic cleaning of the surface of the filter screen 32. Through the dual effects of mechanical scraping and reduced airflow, it not only avoids clogging of the filter screen 32, but also utilizes the gravity fall and the lateral airflow formed by the intake fan to form a closed loop, so that substandard particles automatically return to the grinding area for secondary processing, significantly reducing material loss and the frequency of manual cleaning.

[0028] The filter screen 32 is provided with a vibration triggering platform 312, which has a first chamfer 313. The outer end of the scraper 35 is provided with an elastic striking member 36, which slides across the vibration triggering platform 312 and causes impact vibration. The striking member includes a spring 361 and a trigger hammer 362. The spring 361 is located at the outer end of the scraper 35, and the trigger hammer 362 is located on the spring 361. The trigger hammer has a second chamfer 363 opposite to the first chamfer 313. The trigger hammer 362 is connected to the spring. The elastic trigger hammer 362 of 361 can remain in contact with the surface of the filter screen 32. When the scraper 35 rotates, the trigger hammer 362 slides smoothly along the first chamfer 313 surface of the vibration trigger platform 312, from low to high. After reaching the highest point, it suddenly falls and hits the filter screen 32 with a certain impact force, generating vibration force. This process is repeated periodically with the circumferential rotation of the scraper 35, thereby realizing the vibration cleaning of copper powder and copper material on the filter screen 32, keeping the filter screen 32 unobstructed, and ensuring the efficiency of copper powder passing through the filter screen 32.

[0029] The contact surface between the scraper 35 and the filter screen 32 is provided with a steel brush; the steel brush can improve the cleaning effect of the scraper 35 on the surface of the filter screen 32; the scraper 35 is fixed to the filter screen 32 by a rotating shaft, and is also connected to the grinding chamber 21 of the grinding machine body 2 by a support frame, so that the scraper 35 rotates with the rotation of the grinding machine body 2, and can complete the self-cleaning cycle without the need for an additional drive device.

[0030] A baffle plate 37 is provided between the filter screen 32 and the outlet of the air inlet channel 34312 to ensure that the copper material blown by the air inlet fan can move towards the middle of the grinding machine body 2.

[0031] The inner wall of the grinding machine body 2 is uniformly and fixedly connected with multiple fixing blocks 5, and multiple grinding balls 6 are arranged inside the grinding machine body 2. A feeding hopper 7 is provided at the end of the grinding machine body 2 away from the fixing cover 31, and the feeding hopper 7 is connected to the grinding chamber 21. The multiple fixing blocks 5 are uniformly and fixedly connected to the inner wall of the grinding machine body 2, and the multiple grinding balls 6 are arranged inside the grinding machine body 2 to facilitate the lifting of the grinding balls 6 by the fixing blocks 5, thereby performing impact grinding on the copper powder inside. Large copper particles that are not completely ground can fall back to the bottom of the grinding chamber 21 naturally through the open structure of the feeding hopper 7, avoiding the risk of blockage caused by material accumulation.

[0032] The operating principle of the copper powder grinding and filtering device of the utility model is as follows: First, the copper material to be ground is put into the grinding machine body 2 through the feeding hopper 7. Then, the first motor 4 is started. The rotation of the drive gear of the first motor 4 drives the rotation of the meshing toothed ring 8, which in turn drives the grinding machine body 2 to rotate. This causes the grinding balls 6 inside to continuously impact the copper material inside after the fixed block 5 is lifted, achieving the grinding effect. Then, the exhaust fan 33 is started to continuously absorb the ground copper powder inside, which is then filtered through the filter screen 32. At the same time, the intake fan and scraper 35 are started. The scraper 35 scrapes the copper material off the filter screen 32 and it falls naturally to the output port of the air inlet channel 34312. The copper material is blown towards the middle of the grinding machine body 2 for secondary grinding.

[0033] In this utility model, the fixed cover 31 and the feeding hopper 7 are fixedly set. The grinding machine body 2 rotates between the fixed cover 31 and the feeding hopper 7. The two ends of the grinding machine body 2 are provided with rotating connections to the fixed cover 31 and the feeding head. The rotating connection is an existing mature technology and will not be described in detail in this utility model.

[0034] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A copper powder grinding and filtering device, comprising a base, a grinding body, and a filtering assembly, wherein the base is provided with a first motor for driving the grinding body to rotate, and the grinding body has a grinding chamber, characterized in that... The filter assembly includes a fixed cover located at one end of the grinding machine body. The fixed cover has a powder outlet channel and an air inlet channel. A filter screen is provided on the powder outlet channel. The outlet of the air inlet channel is located below the filter screen. An air outlet fan communicating with the powder outlet channel and an air inlet fan communicating with the air inlet channel are provided on the outside of the fixed cover. A scraper is provided on the filter screen.

2. The copper powder grinding and filtering device according to claim 1, characterized in that, The filter screen is provided with a vibration triggering platform, which has a first chamfer. The outer end of the scraper is provided with an elastic striking element, which slides over the vibration triggering platform and causes impact vibration.

3. The copper powder grinding and filtering device according to claim 2, characterized in that, The striking element includes a spring and a trigger hammer. The spring is located at the outer end of the scraper, and the trigger hammer is located on the spring. The trigger hammer has a second chamfer opposite to the first chamfer.

4. The copper powder grinding and filtering device according to claim 1, characterized in that, The surface of the scraper that contacts the filter screen is equipped with a steel brush.

5. The copper powder grinding and filtering device according to claim 1, characterized in that, A baffle plate is provided between the filter screen and the outlet of the air inlet channel.

6. The copper powder grinding and filtering device according to claim 1, characterized in that, The inner wall of the grinding machine body is uniformly fixedly connected with multiple fixing blocks, and the interior of the grinding machine body is provided with multiple grinding balls.

7. The copper powder grinding and filtering device according to claim 1, characterized in that, The grinding machine body is provided with a feeding hopper at one end away from the fixed cover, and the feeding hopper is connected to the grinding chamber.

8. The copper powder grinding and filtering device according to claim 1, characterized in that, The outer circumferential surface of the grinding machine body is provided with a toothed ring, which is connected to the first motor.

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