Processing device for ferrite magnetic shoe and use method of processing device

Abstract

The invention relates to the technical field of cylindrical ball mills for ferrite magnetic shoe machining, and discloses a ferrite magnetic shoe machining device which comprises a base and a roller, sliding lining mechanisms are arranged in the roller, lining plates capable of sliding in the inside and outside direction of the roller are arranged in the sliding lining mechanisms, and sliding chambers are formed in the positions, corresponding to the sliding lining mechanisms, of a roller shell. A bottom plate is further arranged in each sliding chamber in the outer side direction of the lining plate in a sliding mode, the bottom plates and the lining plates are connected through elastic parts, and cam rings are arranged at the ends of the rollers and used for limiting the maximum outward sliding distance of the bottom plates; when the roller rotates, the bottom plate rotating to or close to the top of the roller slides into the sliding chamber to be hidden, and the lining plates rotating to the side face and the bottom of the roller protrude towards the interior of the roller. Through the improvement of the lining plate structure, the rotation speed limitation is broken through, the motion state of the grinding body is optimized, the cooperation of energy consumption reduction and production efficiency improvement is realized, and the high-efficiency and energy-saving production requirements of ferrite magnetic shoes are met.

Description

Technical Field

[0001] This invention relates to the field of cylindrical ball mill technology for processing ferrite magnet tiles, specifically to a processing device for ferrite magnet tiles and its usage method. Background Technology

[0002] In the field of ferrite magnetic material processing, ball mills are key equipment for fine grinding of pre-fired materials in the production of ferrite magnetic tiles. The mill cylinder needs to be filled with steel balls of different diameters (4-6mm), pre-fired ferrite magnetic tile material, and water. After approximately 10 hours of grinding, the raw material is reduced to a particle size below 1μm. These ball mills, when loaded with material, water, and steel balls, weigh up to 9 tons, resulting in a high load. Currently, most equipment manufacturers configure them with motors of 75kW or higher. Although there is a need to reduce the power configuration to save energy, motors with excessively low power are prone to damage. Therefore, balancing energy consumption with production requirements has become a critical issue.

[0003] Existing ball mills for ferrite magnet processing typically use a fixed, inwardly protruding liner structure inside the drum. This structure has significant drawbacks in practical applications and hinders the achievement of energy-saving goals: First, it has poor speed adaptability. The fixed liner exerts a constant frictional force on the steel balls. At high speeds, the steel balls tend to rotate synchronously with the drum, leading to ineffective grinding and increased power loss. At low speeds, insufficient friction causes the steel balls to slip, requiring longer grinding times and consuming more energy. Second, the critical speed is strictly limited. Under traditional structures, the effective grinding speed of the ball mill needs to be controlled at around 24 r / min, which is insufficient. While increasing the rotational speed can improve efficiency, it is difficult to reduce energy consumption by decreasing the rotational speed. Third, energy consumption and efficiency are difficult to balance. The fixed liner structure leads to energy waste in the equipment under different operating conditions. Even if existing research reduces the motor power from 75kW to 55kW by calculating the moment of inertia and frictional torque, it still cannot fundamentally solve the energy consumption problem caused by the limitations of the liner structure. Fourth, it cannot dynamically adapt to the grinding state of the material. Different grinding stages have different requirements for the action of the steel balls. The fixed liner is prone to over-grinding or under-grinding, which affects the performance of the magnetic tile and causes energy loss.

[0004] In summary, existing ball mills suffer from numerous problems due to their fixed liner structure, making it difficult to effectively save energy. There is an urgent need to improve the liner structure to overcome speed limitations, optimize the motion state of the grinding media, and achieve a synergistic effect of energy consumption reduction and production efficiency improvement, thus meeting the high-efficiency and energy-saving production requirements of ferrite magnets. This technical solution is designed specifically to address this need, aiming to further save energy through innovative structure and solve the pain point of excessive energy consumption in existing equipment. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a processing device and method for ferrite magnetic tiles, which has the advantages of overcoming speed limitations, optimizing the motion state of the grinding body, achieving a synergistic effect of reducing energy consumption and improving production efficiency, and meeting the high-efficiency and energy-saving production requirements of ferrite magnetic tiles. It also solves the problems of poor speed adaptability, strict critical speed limitation, and difficulty in balancing energy consumption and efficiency.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: A processing device for ferrite magnetic tiles includes a base and a roller rotatably mounted on the base. A sliding liner mechanism is provided on the inner circumference of the roller, and each sliding liner mechanism contains a liner plate that can slide along the inner and outer directions of the roller. A sliding chamber is provided on the roller shell corresponding to the position of each sliding liner mechanism. Each liner plate slides within its corresponding sliding chamber. A bottom plate is also slidably mounted in each sliding chamber on the outer side of the liner plate. The bottom plate and the liner plate are connected by an elastic component. A cam ring is provided at the end of the roller to limit the maximum outward sliding distance of each bottom plate. When the roller rotates, the bottom plates that rotate to or approach the top of the roller slide into the sliding chamber and are hidden, while the liner plates that rotate to the side and bottom positions of the roller protrude inwards.

[0007] Preferably, the cam ring includes a convex angle and a smooth angle, the inner diameter of the smooth angle is larger than the inner diameter of the convex angle, the smooth angle and the convex angle are smoothly connected, each bottom plate end is provided with a top shaft, each top shaft abuts against the inner side of the convex angle and the smooth angle, and the top shaft slides within the convex angle and the smooth angle; when the drum rotates, the convex angle is located at the top or near the top of the drum.

[0008] Preferably, the roller is further provided with a triangular cage, the side of which is provided with a long side, a short side, and an arc edge. The arc edge slides against the inner wall of the roller. The long side is provided with multiple through holes smaller than the diameter of the steel ball, and the short side is provided with multiple through holes larger than the diameter of the steel ball. A movable support plate and a fixed support plate are respectively provided at both ends of the roller. The roller is rotatably connected to the movable support plate, and the movable support plate is rotatably connected to the base. A triangular cage driving device is also connected to the movable support plate. The roller is fixedly or rotatably connected to the fixed support plate, and the fixed support plate is rotatably connected to the base. An end plate is also provided at the end of the triangular cage, and the end plate is fixed to the movable support plate. The cam ring is fixed to the movable support plate, and the triangular cage is located near the convex angle. When the roller rotates, the long side faces the direction opposite to the direction of movement of the steel ball.

[0009] Preferably, the triangular cage is provided with an air outlet at the end plate position. The air outlet passes through the movable support plate and connects the inside and outside of the roller. A one-way valve is provided inside the air outlet, which allows airflow or water flow to be sprayed from the outside to the inside of the steel ball in the triangular cage. Pin-type pressure sensors are respectively provided at the rotatable connection between the movable support plate and the base and at the rotatable connection between the fixed support plate and the base.

[0010] Preferably, the length of the longer side is greater than the length of the shorter side.

[0011] Preferably, the roller is also provided with at least one inlet / outlet, and when the triangular cage collects the steel balls to the side of the roller, the inlet / outlet is aligned with the position directly below the roller.

[0012] Preferably, the inner wall of the drum is equipped with a temperature sensor and a vibration sensor. The temperature sensor is used to monitor the processing temperature inside the drum, and the vibration sensor is used to monitor the vibration frequency and amplitude of the drum during operation. All sensor data are transmitted to the central control system.

[0013] Preferably, an automatic valve and a flow sensor are provided at the inlet and outlet. The automatic valve is connected to and controlled by the triangular cage drive device on the same controller. When the triangular cage rotates to the preset unloading position, the automatic valve opens, and the flow sensor is used to monitor the unloading.

[0014] Preferably, the cam ring is detachably mounted on the movable support plate, and the retraction area of ​​the liner plate can be adjusted by replacing the cam ring with a different curvature.

[0015] A method of using a ferrite magnet processing apparatus includes the following steps: S1, ferrite raw materials, water and steel balls are added into the drum through the inlet and outlet; S2, using a drum drive device to drive the drum to rotate, so that the steel balls inside the drum can ball mill the slurry; S3, when the drum speed is increased, the centrifugal force of the liner, the limiting effect of the cam ring on the liner, and the blocking effect of the triangular cage are used to make the steel ball fall quickly to complete the grinding. S4. After grinding is completed, the roller drive device stops, and the triangular cage drive device is started to collect the steel balls using the triangular cage. S5, open the inlet and outlet to collect the slurry, and then use an air pump to remove the remaining slurry in the triangular cage through the air outlet.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides a processing apparatus for ferrite magnetic tiles and a method for using the same, which has the following beneficial effects: 1. The processing device for ferrite magnetic tiles and its usage method, by setting the fixed inwardly protruding liner in the traditional ball mill as a movable mechanism that can slide inwards and outwards, firstly, using the slidable liner, as the drum rotates, the liner slides outwards under the action of centrifugal force. That is, the faster the drum speed, the smaller the inwardly protruding part of the liner, and the less friction on the steel balls. The function is to reduce the synchronous rotation of the steel balls when the drum speed increases, so that the ball mill can adapt to a faster speed. Conversely, when the drum speed decreases, it can increase the synchronous rotation of the steel balls, so that the ball mill can drive the steel balls to move at a lower speed. Secondly, by using the slidable liner in cooperation with the cam ring, the liner that rotates to near the top of the drum automatically slides outwards into the sliding chamber, so that the steel balls detach from the liner and fall. This prevents the drum from carrying the steel balls synchronously when the drum rotates at a faster speed, so that the drum can complete the ball milling work at a faster speed.

[0017] 2. The processing device for ferrite magnetic tiles and its usage method involve setting a triangular cage near the top of the drum, that is, setting the triangular cage at the position where the liner is retracted outward. First, while avoiding the liner colliding with the triangular cage, the long side is used to block the steel ball, allowing the steel ball to fall faster. Second, the cam ring and the triangular cage are fixed on the movable support plate. The movable support plate is driven to rotate by the triangular cage drive device, thereby controlling the rotation of the triangular cage and the cam ring. The synchronous rotation of the triangular cage and the cam ring can cause the liner at the position rotated by the triangular cage to retract into the sliding chamber. The function is to collect the steel ball in the drum from the short side into the triangular cage during the rotation of the triangular cage, and then discharge the slurry through the through hole on the long side, so that the triangular cage carries the steel ball to a position slightly above the side of the drum.

[0018] 3. The processing device for ferrite magnetic tiles and its usage method involve setting air vents on a triangular cage to remove airflow from the steel balls. After cleaning the steel balls, a pin-type pressure sensor installed on a movable support plate and a fixed support plate is used to detect the pressure difference between the two ends. Since the triangular cage is fixed on the movable support plate, the pressure on the movable support plate will be greater than that on the fixed support plate. The pressure difference between the movable and fixed support plates is positively correlated with the total weight of the steel balls in the triangular cage. When the pressure difference between the movable and fixed support plates exceeds a preset value, it indicates that the wear of the steel balls is too great, thus achieving the effect of real-time monitoring of the wear status of the steel balls. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a cross-sectional perspective view of the present invention, with the cross-section coplanar with the rotation axis of the roller.

[0021] Figure 3This is a cross-sectional perspective view of the present invention, with the cross-section perpendicular to the rotation axis of the roller.

[0022] Figure 4 This is a cross-sectional perspective view of the roller of the present invention, with the cross-section perpendicular to the rotation axis of the roller.

[0023] Figure 5 This is a cross-sectional view of the roller of the present invention. At this time, the triangular cage is located inside the roller near the top, and the steel ball is grinding the material.

[0024] Figure 6 For the present invention Figure 5 A magnified view of a portion of region A in the middle.

[0025] Figure 7 This is a cross-sectional view of the drum of the present invention. At this time, the triangular cage is located at the bottom of the drum and is collecting steel balls inside the drum.

[0026] Figure 8 This is a cross-sectional view of the drum of the present invention. At this time, the triangular cage is located on the inner side of the drum, and the short side is above the long side. At this time, the triangular cage has completed the collection of steel balls inside the drum.

[0027] Figure 9 This is a schematic diagram of the structure of the triangular cage drive device, support plate, cam ring and triangular cage of the present invention combined together.

[0028] Figure 10 This is a schematic diagram of the support disk of the present invention.

[0029] Figure 11 This is a schematic diagram of the triangular cage structure of the present invention.

[0030] Figure 12 This is a schematic diagram of the cam ring structure of the present invention.

[0031] Figure 13 This is a cross-sectional view of the cam ring, triangular cage and sliding bushing mechanism of the present invention, with the cross-section passing through the top shaft.

[0032] Figure 14 For the present invention Figure 13 A magnified view of a portion of region B in the middle.

[0033] In the diagram: 11. Base; 12. Movable support plate; 121. Rotary wheel; 13. Roller drive device; 14. Triangular cage drive device; 15. Fixed support plate; 2. Roller; 21. Sliding liner mechanism; 211. Liner plate; 212. Base plate; 213. Sliding chamber; 214. Top shaft; 22. Triangular cage; 221. Long side; 222. Short side; 223. Arc edge; 224. End plate; 225. Air outlet; 23. Cam ring; 231. Convex angle; 232. Smooth angle; 24. Inlet / outlet. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] Example 1: This embodiment provides a processing apparatus for ferrite magnetic tiles and its usage method, which has the following technical features.

[0039] Please see Figure 1-14A processing device for ferrite magnets includes a base 11 and a roller 2 rotatably mounted on the base 11. A sliding liner mechanism 21 is provided on the inner circumference of the roller 2. Each sliding liner mechanism 21 contains a liner plate 211 that can slide along the inner and outer directions of the roller 2. A sliding chamber 213 is provided on the shell of the roller 2 corresponding to the position of each sliding liner mechanism 21. Each liner plate 211 slides within its corresponding sliding chamber 213. A bottom plate 212 is also slidably mounted on the outer side of each liner plate 211 within each sliding chamber 213. The bottom plate 212 and the liner plate 211 are connected by an elastic component. A cam ring 23 is provided at the end of the roller 2 to limit the maximum outward sliding distance of each bottom plate 212. When the roller 2 rotates, the bottom plates 212 that rotate to or approach the top of the roller 2 slide into the sliding chamber 213 and are hidden. The liner plates 211 that rotate to the side and bottom positions of the roller 2 protrude inwards.

[0040] Specifically, please refer to the instruction manual. Figure 5 For example, at this time, the roller 2 rotates counterclockwise, with the position directly above the inside of the roller 2 as the zero point, and the bottom plate 212 slides between 15 degrees clockwise and 45 degrees counterclockwise into the slide chamber 213 and is hidden, while the bottom plate 212 of other parts protrudes into the roller 2.

[0041] Furthermore, the roller 2 is driven to rotate by a roller drive device 13, which includes a motor fixed on the base 11. The pulley on the outer surface of the roller 2 is connected to the pulley on the output shaft of the motor by a transmission belt.

[0042] In an optional embodiment, the cam ring 23 includes a convex angle 231 and a smooth angle 232. The inner diameter of the smooth angle 232 is larger than the inner diameter of the convex angle 231. The smooth angle 232 and the convex angle 231 are smoothly connected. Each bottom plate 212 is provided with a top shaft 214 at its end. Each top shaft 214 abuts against the inner side of the convex angle 231 and the smooth angle 232 outward. The top shaft 214 slides within the convex angle 231 and the smooth angle 232. When the roller 2 rotates, the convex angle 231 is located at the top or near the top of the roller 2.

[0043] Specifically, please refer to the instruction manual. Figure 5 For example, at this time, the roller 2 rotates counterclockwise. Taking the position directly above the inside of the roller 2 as the zero point, the convex angle 231 is located between 15 degrees clockwise and 45 degrees counterclockwise from the zero point.

[0044] Furthermore, the slide chamber 213 and the drum 2 are either integrally cast or the slide chamber 213 is fixed to the drum 2 by welding or bolts.

[0045] Furthermore, the liner 211 is made of stainless steel.

[0046] Furthermore, the elastic component between the base plate 212 and the liner plate 211 is a plurality of springs evenly distributed in an array.

[0047] Furthermore, an annular limiting platform is provided inside the slide chamber 213. The annular limiting platform protrudes into the slide chamber 213. When the liner 211 slides into the roller 2 to the maximum stroke, the edge of the liner 211 abuts against the annular limiting platform. The annular limiting platform and the slide chamber 213 are an integral structure. Its protrusion height is 3-5mm, and its surface is provided with a wear-resistant coating.

[0048] In an optional embodiment, a triangular cage 22 is further provided inside the roller 2. The side of the triangular cage 22 is provided with a long side 221, a short side 222, and an arc edge 223. The arc edge 223 slides against the inner wall of the roller 2. The long side 221 is provided with a plurality of through holes smaller than the diameter of the steel ball, and the short side 222 is provided with a plurality of through holes larger than the diameter of the steel ball. A movable support plate 12 and a fixed support plate 15 are respectively provided at both ends of the roller 2. The roller 2 is rotatably connected to the movable support plate 12, and the movable support plate 12 is rotatably connected to the base 11. A triangular cage drive device 14 is also connected to the movable support plate 12. The roller 2 is fixedly or rotatably connected to the fixed support plate 15, and the fixed support plate 15 is rotatably connected to the base 11. An end plate 224 is also provided at the end of the triangular cage 22. The end plate 224 is fixed on the movable support plate 12, and the cam ring 23 is fixed on the movable support plate 12. The triangular cage 22 is located near the convex angle 231. When the roller 2 rotates, the long side 221 moves in the opposite direction to the direction of movement of the steel ball.

[0049] It should be noted that the orientation of the long side 221 is opposite to the tangential direction of the steel ball on the inner wall of the roller 2 as the roller rotates; when the roller 2 rotates counterclockwise, the long side 221 tilts in the clockwise direction, and its tilt angle is 30°-60° with the tangential direction of the inner wall of the roller 2.

[0050] Furthermore, the end plate 224 is fixed to the movable support plate 12 by bolts.

[0051] Furthermore, the triangular cage drive device 14 includes a motor fixed on the base 11, and a rotating wheel 121 is provided on the movable support plate 12. The rotating wheel 121 and the motor are driven by a belt.

[0052] In an optional embodiment, a blower 225 is also provided on the triangular cage 22 at the position of the end plate 224. The blower 225 passes through the movable support plate 12 and connects the inside and outside of the roller 2. A one-way valve is provided inside the blower 225. The one-way valve allows air or water to be sprayed from the outside to the inside onto the steel ball inside the triangular cage 22. Pin-type pressure sensors are respectively provided at the rotatable connection between the movable support plate 12 and the base 11 and at the rotatable connection between the fixed support plate 15 and the base 11.

[0053] It should be noted that when the drum 2 rotates, the movable support plate 12, the triangular cage 22 and the cam ring 23 are all stationary. When it is necessary to collect steel balls, the movable support plate 12, the triangular cage 22 and the cam ring 23 are driven to rotate synchronously. After the steel balls are collected, the inlet and outlet ports 24 are opened to take out the slurry. Then, the end plate 224 is used to remove the remaining slurry in the triangular cage 22. Finally, the pressure difference is detected by the pin-type pressure sensor.

[0054] Furthermore, an air pump is installed on the base 11. After the steel balls are collected in the triangular cage 22, the outlet of the air pump is connected to the air outlet 225 to remove the slurry on the steel balls inside the triangular cage 22 using high-pressure airflow.

[0055] In an optional embodiment, the length of the longer side 221 is greater than the length of the shorter side 222.

[0056] In an optional embodiment, the roller 2 is also provided with at least one inlet / outlet 24, which is aligned with the position directly below the roller 2 when the triangular cage 22 collects the steel balls to the side of the roller 2.

[0057] Specifically, see the instruction manual. Figure 8 As shown, at this time, the triangular cage 22 collects the steel balls to the side of the drum 2, and the inlet and outlet 24 are aligned with the position directly below the drum 2.

[0058] Furthermore, the surface of the liner 211 facing the inside of the roller 2 is provided with wear-resistant ridges, which are distributed in a spiral shape, with a spacing of 5 to 10 mm between adjacent ridges and a ridge height of 3 to 5 mm.

[0059] Furthermore, an elastic buffer pad is provided inside the slide chamber 213. The buffer pad is made of polyurethane and has a thickness of 2-3 mm. It contacts the liner 211 when the liner 211 slides into the roller 2 to the maximum stroke.

[0060] In an optional embodiment, a temperature sensor and a vibration sensor are provided on the inner wall of the roller 2. The temperature sensor is used to monitor the processing temperature inside the roller 2, and the vibration sensor is used to monitor the vibration frequency and amplitude of the roller 2 during operation. The data from each sensor are transmitted to the central control system.

[0061] In an optional embodiment, an automatic valve and a flow sensor are provided at the inlet / outlet 24. The automatic valve is connected to and controlled by the triangular cage drive device 14 on the same controller. When the triangular cage 22 rotates to the preset unloading position, the automatic valve opens, and the flow sensor is used to monitor the unloading.

[0062] In an optional embodiment, the cam ring 23 is detachably mounted on the movable support plate 12, and the retraction area of ​​the liner 211 can be adjusted by replacing the cam ring 23 with different curvatures.

[0063] It should be noted that the cam ring 23 is fixed to the movable support plate 12 by bolts.

[0064] Furthermore, the motor of the roller drive device 13 is equipped with a reducer, with a recommended reduction ratio of 1:20-1:50, to achieve low-speed stable rotation of the roller 2 (5-20 rpm).

[0065] Furthermore, the transmission belt should be a polyurethane synchronous belt to avoid slippage that could affect the rotational accuracy of roller 2.

[0066] Furthermore, a shock-absorbing pad is installed between the motor and the base 11 to reduce vibration transmission during equipment operation.

[0067] Furthermore, a safety interlock device should be installed at the inlet and outlet 24 of the roller 2. When the inlet and outlet 24 is not completely closed, the roller drive device 13 cannot be started.

[0068] Furthermore, all rotating parts should be fitted with protective covers that are designed to prevent opening, ensuring that the equipment cannot be opened while it is in operation.

[0069] Furthermore, the system should be equipped with overload protection. When the load inside roller 2 exceeds a preset value, the machine should automatically stop and trigger an alarm. Furthermore, the drum 2 should be equipped with a temperature control system that activates a cooling device to lower the temperature when the temperature sensor detects that the internal temperature exceeds 60°C.

[0070] Furthermore, the processing area should be equipped with a dust collection device connected to the ventilation part of the roller 2 to reduce dust pollution during the processing.

[0071] Furthermore, the equipment should have a humidity monitoring function, issuing a warning and recommending a halt to processing when the ambient humidity exceeds 80%.

[0072] Furthermore, the central control system should include a touch screen interface that can display key indicators such as the rotational speed, internal temperature, and vibration parameters of the drum 2 in real time.

[0073] Furthermore, the system should have an automatic recording function to store information such as parameters, duration, and material type for each processing step, facilitating quality traceability.

[0074] Further improvements include the addition of a remote monitoring interface, which allows users to view device operating status and historical data via the network, enabling intelligent management.

[0075] Furthermore, a grease filling port should be provided on the sliding contact surface between the slide chamber 213 and the base plate 212. It is recommended to add special grease every 50 hours of operation.

[0076] Furthermore, the contact area between the cam ring 23 and the top shaft 214 should be inspected for wear regularly, and the cam ring should be replaced promptly when the wear exceeds 0.5 mm.

[0077] Furthermore, the through holes of the triangular cage 22 should be cleaned regularly to prevent the slurry from drying out and becoming clogged, thus affecting the separation effect.

[0078] Furthermore, a movable receiving device should be installed below the inlet / outlet 24. The receiving device should be equipped with a weighing sensor to monitor the unloading volume in real time.

[0079] Furthermore, the high-pressure airflow at the blower 225 should be adjustable, with a recommended pressure range of 0.3-0.6 MPa. The appropriate pressure should be selected based on the size of the steel ball.

[0080] A method of using a ferrite magnet processing apparatus includes the following steps: S1, ferrite raw materials, water and steel balls are added into the drum 2 through the inlet and outlet 24; S2, the roller drive device 13 drives the roller 2 to rotate, so that the steel balls inside the roller 2 can ball mill the slurry; S3, when the speed of the roller 2 is increased, the centrifugal force of the liner 211, the limiting effect of the cam ring 23 on the liner 211, and the blocking effect of the triangular cage 22 are used to make the steel ball fall quickly to complete the grinding. S4. After grinding is completed, the roller drive device 13 stops, the triangular cage drive device 14 is started, and the triangular cage 22 is used to collect the steel balls. S5, open the inlet and outlet 24 to collect the slurry, and then use the air pump to remove the slurry remaining in the triangular cage 22 through the air outlet 225; S6, using the pin-type pressure sensor on the movable support plate 12 and the fixed support plate 15 to detect the pressure difference between the movable support plate 12 and the fixed support plate 15, judging the wear state of the steel ball based on the pressure difference, and replenishing the steel ball in time through the inlet and outlet 24. S7, close the inlet and outlet ports 24 and rotate the movable support plate 12 to make the steel balls in the triangular cage 22 fall back to the inner wall of the drum 2, add ferrite raw materials and water again, and repeat the operation of S2-S6.

[0081] In summary, the processing device and its method for ferrite magnets utilize a sliding mechanism by modifying the fixed, inwardly protruding liner 211 in a conventional ball mill. Firstly, the sliding liner 211 slides outward under centrifugal force as the drum 2 rotates. This means that the faster the drum 2 rotates, the smaller the inward protrusion of the liner 211, resulting in less friction on the steel balls. This reduces the synchronous rotation of the steel balls when the drum 2 rotates, allowing the ball mill to adapt to higher speeds. Conversely, it increases the synchronous rotation of the steel balls when the drum 2 rotates, enabling the ball mill to move the steel balls even at lower speeds. Secondly, the sliding liner 211, in conjunction with the cam ring 23, automatically slides outward into the sliding chamber 213 when it reaches near the top of the drum 2. This causes the steel balls to detach from the liner 211 and fall, preventing the drum 2 from rotating synchronously with the steel balls even at higher speeds.

[0082] The processing device and its method for ferrite magnetic tiles are described. A triangular cage 22 is installed near the top of the drum 2, specifically at the position where the liner 211 retracts outwards. Firstly, to prevent the liner 211 from colliding with the triangular cage 22, the long side 221 blocks the steel balls, allowing them to fall more quickly. Secondly, both the cam ring 23 and the triangular cage 22 are fixed to the movable support plate 12. The triangular cage drive device 14 drives the movable support plate 12 to rotate, thereby controlling the rotation of the triangular cage 22 and the cam ring 23. Synchronous rotation of the triangular cage 22 and the cam ring 23 allows the liner 211 at the position reached by the triangular cage 22 to retract into the slide chamber 213. This allows the steel balls inside the drum 2 to be collected from the short side 222 into the triangular cage 22 during rotation. The slurry is then discharged through the through-hole on the long side 221, causing the triangular cage 22 to rotate with the steel balls to a position slightly above the side of the drum 2.

[0083] The processing device and its method for ferrite magnets utilize airflow to remove air from the steel balls by setting air outlets 225 on the triangular cage 22. After cleaning the steel balls, the pressure difference between the two ends is detected by pin-type pressure sensors respectively set on the movable support plate 12 and the fixed support plate 15. Since the triangular cage 22 is fixed on the movable support plate 12, the pressure on the movable support plate 12 will be greater than the pressure on the fixed support plate 15. The pressure difference between the movable support plate 12 and the fixed support plate 15 is positively correlated with the total weight of the steel balls in the triangular cage 22. When the pressure difference between the movable support plate 12 and the fixed support plate 15 exceeds a preset value, it indicates that the wear of the steel balls is too great, thus achieving the effect of real-time monitoring of the wear status of the steel balls.

[0084] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0085] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing apparatus for ferrite magnet tiles, comprising a base (11) and a roller (2) rotatably disposed on the base (11), characterized in that: The inner circumference of the roller (2) is provided with a sliding liner mechanism (21), and each sliding liner mechanism (21) is provided with a liner plate (211) that can slide along the inner and outer directions of the roller (2). The roller (2) shell is provided with a sliding chamber (213) corresponding to the position of each sliding liner mechanism (21). Each liner plate (211) slides in the corresponding sliding chamber (213). A bottom plate (212) is also slidably provided in each sliding chamber (213) in the direction outside the liner plate (211). The bottom plate (212) and the liner plate (211) are connected by an elastic component. A cam ring (23) is provided at the end of the roller (2). The cam ring (23) is used to limit the maximum distance that each bottom plate (212) slides outward. When the drum (2) rotates, the bottom plate (212) that rotates to or near the top of the drum (2) slides into the slide chamber (213) and is hidden, and the liner (211) that rotates to the side and bottom of the drum (2) protrudes into the drum (2).

2. The processing apparatus for ferrite magnetic tiles according to claim 1, characterized in that, The cam ring (23) includes a convex angle (231) and a smooth angle (232). The inner diameter of the smooth angle (232) is larger than the inner diameter of the convex angle (231). The smooth angle (232) and the convex angle (231) are connected smoothly. Each base plate (212) is provided with a top shaft (214) at its end. Each top shaft (214) abuts against the inner side of the convex angle (231) and the smooth angle (232) outward. The top shaft (214) slides within the convex angle (231) and the smooth angle (232). When the drum (2) rotates, the convex angle (231) is located at the top or near the top inside the drum (2).

3. The processing apparatus for ferrite magnetic tiles according to claim 2, characterized in that, The roller (2) is also provided with a triangular cage (22). The side of the triangular cage (22) is provided with a long side (221), a short side (222) and an arc side (223). The arc side (223) slides against the inner wall of the roller (2). The long side (221) is provided with a plurality of through holes smaller than the diameter of the steel ball, and the short side (222) is provided with a plurality of through holes larger than the diameter of the steel ball. The roller (2) is provided with a movable support plate (12) and a fixed support plate (15) at both ends respectively. The roller (2) is rotatably connected to the movable support plate (12), and the movable support plate (12) is rotatably connected to the base (11). A triangular cage drive device (14) is also connected to the movable support plate (12). The roller (2) is fixedly or rotatably connected to the fixed support plate (15), and the fixed support plate (15) is rotatably connected to the base (11). The triangular cage (22) is also provided with an end plate (224) at its end. The end plate (224) is fixed on the movable support plate (12). The cam ring (23) is fixed on the movable support plate (12). The triangular cage (22) is located near the convex angle (231). As the drum (2) rotates, the long side (221) faces the opposite direction to the direction of movement of the steel ball.

4. The processing apparatus for ferrite magnetic tiles according to claim 3, characterized in that, The triangular cage (22) is also provided with an air outlet (225) at the end plate (224). The air outlet (225) passes through the movable support plate (12) and connects the inside and outside of the roller (2). A one-way valve is provided in the air outlet (225). The one-way valve allows airflow or water flow to be sprayed from the outside to the inside of the steel ball in the triangular cage (22). Pin-type pressure sensors are respectively provided at the rotatable connection between the movable support plate (12) and the base (11) and at the rotatable connection between the fixed support plate (15) and the base (11).

5. The processing apparatus for ferrite magnetic tiles according to claim 3, characterized in that, The length of the longer side (221) is greater than the length of the shorter side (222).

6. The processing apparatus for ferrite magnetic tiles according to claim 3, characterized in that, The roller (2) is also provided with at least one inlet / outlet (24). When the triangular cage (22) collects the steel balls to the side of the roller (2), the inlet / outlet (24) is aligned with the position directly below the roller (2).

7. The processing apparatus for ferrite magnetic tiles according to claim 4, characterized in that, The inner wall of the roller (2) is equipped with a temperature sensor and a vibration sensor. The temperature sensor is used to monitor the processing temperature inside the roller (2), and the vibration sensor is used to monitor the vibration frequency and amplitude of the roller (2) during operation. All sensor data are transmitted to the central control system.

8. The processing apparatus for ferrite magnetic tiles according to claim 6, characterized in that, An automatic valve and a flow sensor are provided at the inlet / outlet (24). The automatic valve is connected to the triangular cage drive device (14) and controlled on the same controller. When the triangular cage (22) rotates to the preset unloading position, the automatic valve opens and the flow sensor is used to monitor the unloading.

9. The processing apparatus for ferrite magnetic tiles according to claim 3, characterized in that, The cam ring (23) is detachably mounted on the movable support plate (12), and the retraction area of ​​the liner (211) can be adjusted by replacing the cam ring (23) with different curvatures.

10. A method of using a ferrite magnet processing apparatus, for operating the ferrite magnet processing apparatus as described in any one of claims 1-9, characterized in that, Includes the following steps: S1, ferrite raw materials, water and steel balls are added into the drum (2) through the inlet and outlet (24); S2, the roller drive device (13) drives the roller (2) to rotate, so that the steel balls inside the roller (2) can ball mill the slurry; S3, when the speed of the drum (2) is increased, the centrifugal force of the liner (211), the limiting effect of the cam ring (23) on the liner (211) and the blocking effect of the triangular cage (22) are used to make the steel ball fall quickly to complete the grinding. S4. After grinding is completed, the roller drive device (13) stops, and the triangular cage drive device (14) is started to collect the steel balls using the triangular cage (22). S5, open the inlet and outlet (24) to collect the slurry, and then use an air pump to remove the slurry remaining in the triangular cage (22) through the air outlet (225).

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