Ferrite tile continuous production device based on MES system and production process thereof

Abstract

The application discloses a ferrite magnetic tile continuous production device based on an MES system and a production process thereof and belongs to the technical field of magnetic tile production. The process comprises the following steps: S1, modeling; S2, batching; S3, ball milling; S4, storing; S5, pressing forming; S6, sintering; S7, grinding; and S8, drying and deburring. The ferrite magnetic tile obtained through grinding is subjected to cleaning and drying treatment, and residual moisture on the surface is removed; and a vibrating disc and grinding material are used for treatment. The intelligent preparation of the ferrite magnetic tile is realized through the MES system, the production efficiency of the ferrite magnetic tile can be improved, the process capability index cpk of main quality characteristics of the product is improved, and the product is more stable and controllable.

Description

Technical Field

[0001] This invention belongs to the field of magnetic tile production technology, and more specifically, relates to a continuous production device and production process for ferrite magnetic tiles based on a MES system. Background Technology

[0002] Permanent magnet ferrite magnets are an important component of electric motors. Unlike electromagnetic motors that generate a magnetomotive force source through excitation coils, permanent magnet motors use permanent magnet materials to generate a constant magnetomotive force source. Therefore, replacing electrically excited motors with permanent magnet ferrite magnets offers advantages such as simpler motor structure, easier maintenance, lighter weight, smaller size, more reliable operation, less copper usage, lower copper consumption, and lower energy consumption. Permanent magnet ferrite magnets are widely used in automobiles. With the improvement of people's living standards, the use of starter motor magnets in automobiles has also increased significantly. Currently, after the ferrite magnetic tiles complete the pressing and sintering processes, they enter the grinding process. The grinding process steps of the magnetic tiles include: 1) grinding the two ends of the axial length using a double-end face grinder; 2) grinding the chord width and bottom plane of the magnetic tile using a single-station grinder; 3) grinding the inner and outer arc chamfers of the two ends of the axial length using a four-station automatic chamfering grinder; 4) rough grinding the inner and outer arcs of the magnetic tile using a double-station through-type tile-shaped magnetic grinder; 5) fine grinding the inner arc of the magnetic tile using a single-station through-type tile-shaped magnetic grinder; 6) fine grinding the outer arc of the magnetic tile using a single-station through-type tile-shaped magnetic grinder; 7) chamfering the finished magnetic tile with a 4R angle.

[0003] Therefore, a search revealed a manufacturing process for an arc-shaped magnetic tile for a motor, disclosed in Chinese Patent Publication No. CN113210610A. This process includes: S1: ball milling of the raw materials for the arc-shaped magnetic tile; S2: wet pressing of the milled raw materials to form an arc-shaped magnetic tile blank; S3: sintering of the formed arc-shaped magnetic tile blank; S4: grinding and quality inspection of the sintered arc-shaped magnetic tile. Chinese Patent Publication No. CN114105626A discloses a method for preparing a wet-pressed magnetic tile, the specific preparation process of which is as follows: Raw materials are added to a ball mill, milled, filtered, and dried. Simultaneously, the dried material is sintered in a muffle furnace, then cooled to room temperature. The resulting primary sintered material is pulverized, sieved, and added back to the ball mill. Composite additives are then added, and a second ball milling is performed. The resulting secondary slurry is then filtered, wet-pressed, and sintered in a muffle furnace to obtain the magnetic tile.

[0004] However, with the use of automated production lines for ferrite tiles, especially those based on MES systems, improvements to existing equipment are needed to address how to remove rust from ferrite tiles on these production lines. Summary of the Invention

[0005] 1. The problem to be solved

[0006] To address the problems in the prior art, this invention provides a continuous production process for ferrite magnetic tiles based on a MES system. By using the MES system to achieve intelligent manufacturing of ferrite magnetic tiles, the production efficiency of ferrite magnetic tiles can be improved, the process capability index (cpk) of the main quality characteristics of the product can be increased, and the product can be made more stable and controllable.

[0007] Another objective of this invention is to provide a production apparatus for a continuous production process of ferrite magnetic tiles based on a MES system.

[0008] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0009] The first aspect of this invention provides a continuous production process for ferrite magnetic tiles based on a MES system, comprising the following steps:

[0010] S1. Modeling: Input the production parameters required for ferrite tiles into the control unit containing the MES system database;

[0011] S2. Batching: The MES system outputs instructions on the composition of the produced ferrite magnetic tiles, and the batching unit performs batching.

[0012] S3. Ball milling: Based on the MES system, an empty ball milling unit is determined. The ferrite magnetic tile raw material is transported to the vertical tower mill or horizontal ball mill of the ball milling unit. After being ground to the specified particle size parameters, it is transported to the storage unit.

[0013] S4. Storage: Based on the liquid level information in several storage tanks of the storage unit, determine one of the storage tanks that can be fed with material using the MES system;

[0014] S5. Pressing and molding: Based on the liquid level information of the storage tank, determine the discharge storage tank, and then determine one of the filter presses in the pressing and molding unit that can feed the material based on the MES system.

[0015] S6, Sintering: The billet pressed into shape by S5 is transported to the programmable box furnace of the sintering unit and sintered based on the output instructions of the MES system;

[0016] S7. Grinding: Grind the rough ferrite magnetic tile obtained by S6 sintering, including the two end faces of the shaft length, the chord width and the bottom plane, and the inner and outer arc chamfers of the two end faces of the shaft length. Roughly grind the inner and outer arcs of the magnetic tile, and finely grind the inner and outer arcs of the magnetic tile.

[0017] S8. Drying and deburring: Based on the output instructions of the MES system, the ferrite magnetic tiles obtained by grinding are cleaned and dried (100-150℃) to remove residual moisture on the surface; a vibratory plate and abrasive are used for processing. The abrasive is an inorganic material with a Mohs hardness of no more than 5, such as BaSO4, CaSiO4, CaSiO3 or γ-AlOOH, and the particle size of the abrasive is 0.5-1.0mm.

[0018] According to any embodiment of the first aspect of the present invention, in step S3, the particle size is required to be 0.5-1.0 micrometers, and the discharge port of the vertical tower mill or horizontal ball mill is provided with a filter screen with a pore size of 0.5-1.0 micrometers.

[0019] According to any embodiment of the first aspect of the present invention, in the ball milling process, the ball:material:water ratio is 15:1:2, and the ball milling is carried out on a rolling wet horizontal ball mill with a rotation speed of 80-100 r / min for 12-16 h.

[0020] According to any embodiment of the first aspect of the present invention, in the pressing and molding process, the moisture content of the mixture is controlled at 30-40 wt%; the slurry is pressed into a blank, the molding magnetic field is 850-950 kA / m and parallel to the pressing direction, and the pressing pressure is 400-500 MPa.

[0021] In the sintering process, the sintering temperature is increased from 200℃ to 1190℃±20℃, and the sintering time is 2-3 hours.

[0022] A second aspect of the present invention provides a production apparatus for a continuous production process of ferrite tiles based on a MES system, comprising several production units, each production unit having its own identification information, and a control unit for an MES system database; at least one material conveying device is provided between two adjacent production units, each material conveying device having its own identification information, and the identification information of each material conveying device being associated with the material state; and an information acquisition device for acquiring the identification information of each production unit from each production unit and the identification information of each material conveying device from each material conveying device, wherein the control unit is connected to the information acquisition device and binds the identification information of each material conveying device received from the information acquisition device with the identification information of the corresponding production unit through the MES system database, and the corresponding production unit is the production unit that receives all materials associated with the identification information of the material conveying device.

[0023] The production unit includes a batching unit for ferrite tile components; a ball milling unit for grinding the ferrite tile raw materials to a specified particle size; a storage unit for storing the ball mill slurry, wherein the material conveying device between the storage unit and the ball milling unit includes at least two first conveying pipes, each equipped with an electromagnetic ball valve; a pressing and forming unit for slurry filtration, wherein the pressing and forming unit can be a large filter press; wherein the material conveying device between the storage unit and the pressing and forming unit includes at least two second conveying pipes, each equipped with an electromagnetic ball valve; and a sintering unit for the billet, wherein the sintering unit is a programmable box furnace; The material conveying device between the sintering unit and the pressing and forming unit is an AGV transfer trolley, realizing a fully automated production process; the grinding unit for sintering magnetic tiles includes a double-end face grinder, a single-station grinder, a four-station automatic chamfering grinder, a double-station through-type tile-shaped magnet grinder, a single-station through-type tile-shaped magnet grinder, a single-station through-type tile-shaped magnet grinder, and a 4R chamfering grinder connected in sequence; the material conveying device between the sintering unit and the grinding unit includes at least one first conveyor belt; and the drying and deburring unit includes a material conveying device between the grinding unit and the drying and deburring unit including at least one second conveyor belt.

[0024] The drying and deburring unit includes a cleaning and drying machine and a spiral vibration device. The cleaning and drying machine is an ultrasonic cleaning and drying machine, which includes an ultrasonic cleaning section and a hot air drying section. The ultrasonic cleaning section includes a water tank, an ultrasonic transmitter, and a chain plate. The ultrasonic transmitter is placed on both sides of the water tank, and the chain plate is placed in the water tank. The hot air drying section includes a hot air pipe and a drying chamber. The hot air pipe is placed around the upper part of the drying chamber, and the chain plate passes through the drying chamber.

[0025] According to any embodiment of the second aspect of the present invention, the helical vibration device includes a helical vibration component and an abrasive feeding component. The abrasive feeding component includes a base, a feeding vibrator, and a hopper placed on the base. The feeding vibrator is disposed above the base, and the hopper is disposed above the feeding vibrator. The hopper is provided with an inclined guide chute that extends obliquely above the helical vibration unit. The hopper stores abrasive material, which is intermittently fed into the helical vibration unit by the feeding vibrator.

[0026] According to any embodiment of the second aspect of the present invention, the helical vibration component includes a frame, a vibratory plate, a helical track, a track outlet, and a slide rail. The vibratory plate is mounted on the frame, the helical track is mounted inside the vibratory plate, and the track outlet is located at the end of the helical track, placed on the top surface of the vibratory plate, and connected to the slide rail.

[0027] 3. Beneficial effects

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] (1) The continuous production device for ferrite magnetic tiles based on the MES system of the present invention realizes the intelligent preparation of ferrite magnetic tiles through the MES system, which can improve the production efficiency of ferrite magnetic tiles, improve the process capability index cpk of the main quality characteristics of the product, and make the product more stable and controllable.

[0030] (2) The ferrite tile continuous production device based on the MES system of the present invention has a simple structure and is easy to manufacture. Attached Figure Description

[0031] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, unless specifically indicated, these drawings are intended only to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0032] Figure 1 This is a schematic diagram of the continuous production device for ferrite magnetic tiles based on the MES system of the present invention.

[0033] Figure 2 This is a schematic diagram of the drying and deburring unit structure of the ferrite magnetic tile continuous production device based on the MES system of the present invention.

[0034] Figure 3 This is a schematic diagram of the spiral vibration component structure of the ferrite magnetic tile continuous production device based on the MES system of the present invention.

[0035] Figure 4 This is a schematic diagram of the abrasive feeding component of the continuous production device for ferrite magnetic tiles based on the MES system of the present invention.

[0036] Figure 5 This is a schematic diagram of the ultrasonic cleaning section and hot air drying section of the continuous ferrite tile production device based on the MES system of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Ball milling unit; 20. Material storage unit; 30. Compression molding unit; 31. AGV transfer trolley; 40. Sintering unit; 50. Grinding unit;

[0039] 60. Drying and deburring unit; 61. Ultrasonic cleaning unit; 611. Water tank; 612. Ultrasonic transmitter; 613. Chain plate; 62. Hot air drying unit; 621. Hot air duct; 622. Drying chamber; 63. Spiral vibration component; 631. Frame; 632. Vibratory plate; 633. Spiral track; 634. Track outlet; 635. Slide rail; 64. Abrasive material feeding component; 641. Base; 642. Feeding vibrator; 643. Hopper; 644. Guide chute; 65. Protective cover; 66. Second conveyor belt;

[0040] 70. Control unit. Detailed Implementation

[0041] Exemplary embodiments of the present invention are described in detail below. While these exemplary embodiments have been described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be implemented and various changes may be made to the invention without departing from its spirit and scope. The more detailed description of embodiments of the invention below is not intended to limit the scope of the claimed invention, but is merely illustrative and does not limit the description of the features and characteristics of the invention, in order to suggest the best mode for carrying out the invention and to enable those skilled in the art to practice it. Therefore, the scope of the invention is defined only by the appended claims.

[0042] The continuous production process of ferrite magnetic tiles based on the MES system of the present invention includes the following steps:

[0043] S1. Modeling: Input the production parameters required for ferrite tiles into the control unit 70, which contains the MES system database; the MES system is a commercially available, mature production process control software that can be installed on multiple hardware platforms.

[0044] S2. Batching: Batching is carried out according to the composition of the ferrite magnetic tiles being produced. The information of the raw materials is recorded on barcodes. The information on the barcodes is identified by a barcode scanner to determine the type of raw material. The MES system outputs instructions according to the composition of the ferrite magnetic tiles being produced, and the batching unit performs the batching.

[0045] S3. Ball Milling: Based on the MES system, an empty ball milling unit 10 is determined. Ferrite magnetic tile raw materials are transported to the vertical tower mill or horizontal ball mill of the ball milling unit 10. After being ground to the specified particle size parameters, the raw materials are transported to the storage unit 20. The particle size requirement is 0.5-1.0 micrometers. The discharge port of the vertical tower mill or horizontal ball mill is equipped with a filter screen with the above-mentioned pore size. Through the filtering effect of the filter screen, particles that meet the particle size requirements are discharged.

[0046] In the above-mentioned ball milling process, the ratio of balls:material:water is 15:1:2, and the ball milling is carried out on a rolling wet horizontal ball mill with a rotation speed of 80-100 r / min for 12-16 h. A dispersant can be added, which is a mixture of calcium gluconate and sorbitol, wherein the proportion of calcium gluconate to the weight of the ball milled material is: 0.1 wt% ≤ calcium gluconate ≤ 0.5 wt%, 0.2 wt% ≤ sorbitol ≤ 0.8 wt%.

[0047] S4. Material Storage: Based on the liquid level information in several storage tanks of the material storage unit 20, the MES system determines that one of the storage tanks can be fed with material. The storage tank is equipped with a liquid level gauge or laser liquid level meter, etc. The data is collected by the liquid level gauge or laser liquid level meter and fed back to the control unit 70, and input into the MES system for statistics and analysis.

[0048] S5. Pressing and Molding: Based on the liquid level information of the storage tank, determine the discharge storage tank, and then determine one of the large filter presses in the pressing and molding unit 30 that can feed the material based on the MES system; control the moisture content of the mixture at 30-40wt%; press the slurry into a blank, with a molding magnetic field of 850-950 kA / m and parallel to the pressing direction, and a pressing pressure of 400-500 MPa;

[0049] S6. Sintering: The billet pressed and formed in S5 is transported to the programmable box furnace of sintering unit 40 and sintered based on the output instructions of the MES system; the sintering temperature is raised from 200℃ to 1190℃±20℃ and the sintering time is 2-3 h; an AGV transfer cart 31 is set between the sintering unit 40 and the pressing and forming unit 30 to realize a fully automated production process.

[0050] S7. Grinding: Grind the rough ferrite magnetic tile obtained by S6 sintering, including the two end faces of the shaft length, the chord width and the bottom plane, and the inner and outer arc chamfers of the two end faces of the shaft length. Roughly grind the inner and outer arcs of the magnetic tile, and finely grind the inner and outer arcs of the magnetic tile.

[0051] S8. Drying and Deburring: Based on the output instructions of the MES system, the ferrite magnetic tiles obtained by grinding are cleaned and dried (temperature is 100-150℃) to remove residual moisture on the surface; a vibratory plate 632 is used to process the abrasive material, which is an inorganic material with a Mohs hardness of no more than 5, such as BaSO4, CaSiO4, CaSiO3 or γ-AlOOH, with a particle size of 0.5-1.0mm, specifically 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm and 1.0mm.

[0052] The abrasive added is 0.5kg / 10kg-0.8kg / 10kg of magnetic tile. Using abrasive with a Mohs hardness not exceeding 5, the microburrs generated on the edges of the magnetic tile due to grinding can be effectively removed, meeting the usage requirements of the magnetic tile. However, the inventors were surprised to find that in the subsequent performance test of ferrite magnetic tile assembly and use, the performance of ferrite magnetic tiles treated with abrasive was improved (compared to other abrasive treatments, such as the magnetic tiles obtained in Patent Document 1). In particular, for components of permanent magnet motors composed of multiple magnetic tiles, the eddy current loss of the permanent magnet motor at high frequencies was reduced by about 0.05-0.08% without any change in volume or other treatments.

[0053] Through extensive experiments and analysis, the inventors believe the possible reasons are as follows: the hardness of these small abrasive particles does not exceed the hardness of the magnetic tile itself (the hardness is relatively high after sintering, generally around 8 or even higher). The abrasive particles are subjected to vibration in a microscopic state, constantly squeezing and rubbing the magnetic tile, polishing the tiny burrs (which appear as partial protrusions under a microscope). At the same time, the abrasive particles produced by the squeezing and polishing have good insulating properties. They adhere to the surface of the ferrite magnetic tile and even partially enter the surface pores, forming an effective insulating layer between the ferrite magnetic tiles, increasing the resistance of the magnetic tile, and effectively reducing eddy current losses at high frequencies.

[0054] Furthermore, the abrasive particles mentioned above have a small particle size, which allows them to partially adhere to the surface of the ferrite magnetic tile. This reduces the risk of moisture corrosion caused by direct exposure to the air, thus providing some rust prevention and extending the service life of the magnetic tile.

[0055] Combination Figures 1 to 5 As shown, the production apparatus used in the continuous production process of ferrite tiles based on the MES system includes several production units, each with its own identification information. The apparatus also includes a control unit 70 for the MES system database. At least one material conveying device is provided between two adjacent production units, each with its own identification information, and the identification information of each material conveying device is associated with the material status. An information acquisition device is also included for obtaining the identification information of each production unit and the identification information of each material conveying device. The control unit 70 is connected to the information acquisition device and binds the identification information of each material conveying device received from the information acquisition device with the identification information of the corresponding production unit through the MES system database. The corresponding production unit is the production unit that receives all materials associated with the identification information of the material conveying device.

[0056] Furthermore, the information acquisition device is a barcode scanner, and the identification information is carried by a barcode, with the corresponding barcode affixed to the exterior of the production unit and the material conveying device.

[0057] Furthermore, the batching unit includes at least one barcode scanner and an industrial control computer, and the data from the barcode scanner is fed back to the MES system database of the control unit 70.

[0058] In this embodiment, the production unit includes a batching unit for ferrite tile components; a ball milling unit 10 for grinding the ferrite tile raw materials to a specified particle size; a storage unit 20 for storing the ball mill slurry, wherein the material conveying device between the storage unit 20 and the ball milling unit 10 includes at least two first conveying pipes, each first conveying pipe being equipped with an electromagnetic ball valve; a pressing and forming unit 30 for slurry filtration, wherein the pressing and forming unit 30 can be a large filter press; wherein the material conveying device between the storage unit 20 and the pressing and forming unit 30 includes at least two second conveying pipes, each second conveying pipe being equipped with an electromagnetic ball valve; and a sintering unit 40 for the billet, wherein the sintering unit 40 is a programmable box furnace. The material conveying device between the sintering unit 40 and the pressing and forming unit 30 is an AGV transfer trolley 31, realizing a fully automated production process; the grinding unit 50 for sintering magnetic tiles includes a double-end face grinder, a single-station grinder, a four-station automatic chamfering grinder, a double-station through-type tile-shaped magnet grinder, a single-station through-type tile-shaped magnet grinder, a single-station through-type tile-shaped magnet grinder, and a chamfering 4R angle grinder connected in sequence; the material conveying device between the sintering unit 40 and the grinding unit 50 includes at least one first conveyor belt; and the drying and deburring unit 60, the material conveying device between the grinding unit 50 and the drying and deburring unit 60 includes at least one second conveyor belt 66.

[0059] In this embodiment, the drying and deburring unit 60 includes an ultrasonic cleaning and drying machine and a spiral vibration device. The ultrasonic cleaning and drying machine includes an ultrasonic cleaning section 61 and a hot air drying section 62. The ultrasonic cleaning section 61 includes a water tank 611, an ultrasonic transmitter 612, and a chain plate 613. The ultrasonic transmitter is placed on both sides of the water tank 611, and the chain plate 613 is placed in the water tank 611. The hot air drying section 62 includes a hot air pipe 621 and a drying chamber 622. The hot air pipe 621 is placed around the upper part of the drying chamber 622, and the chain plate 613 passes through the drying chamber 622.

[0060] Low-temperature drying (100-150℃, specifically 100℃, 110℃, 120℃, 130℃, 140℃ and 150℃, preferably 120℃) in a cleaning and drying machine can effectively remove moisture remaining on the surface of ferrite tiles, and also remove adsorbed water on the shallow surface of the tiles.

[0061] In addition, the drying and deburring unit 60 can also be dried by steam or other methods.

[0062] In this embodiment, the spiral vibration device includes a spiral vibration component 63 and an abrasive feeding component 64. The abrasive feeding component 64 includes a base 641, a feeding vibrator 642, and a hopper 643 placed on the base 641. The feeding vibrator 642 is positioned above the base 641, and the hopper 643 is positioned above the feeding vibrator 642. The hopper 643 is provided with an inclined guide chute 644. The inclination angle of the guide chute 644 is 10-15° (the angle with the horizontal plane), specifically 10°, 11°, 12°, 13°, 14°, and 15°, preferably 12°. The guide chute 644 extends obliquely above the spiral vibration component 63. The hopper 643 stores abrasive material, which is intermittently fed into the spiral vibration component 63 by the feeding vibrator 642. The centerline of the guide groove 644 coincides with the centerline of the spiral vibration component 63; the outlet of the guide groove 644 is located at the edge of the vibrating plate 632, and the height of the guide groove 644 from the vibrating plate 632 is 5-10mm, specifically 5mm, 6mm, 7mm, 8mm, 9mm and 10mm, preferably 8mm.

[0063] In this embodiment, the spiral vibration device further includes a protective cover 65, which can cover the spiral vibration component 63 and the abrasive feeding component 64 to effectively suppress dust generated by vibration.

[0064] In this embodiment, the helical vibration component 63 includes a frame 631, a vibratory plate 632, a helical track 633, a track outlet 634, and a slide rail 635. The vibratory plate 632 is mounted on the frame 631, the helical track 633 is mounted inside the vibratory plate 632, and the track outlet 634 is located at the end of the helical track 633, placed on the top surface of the vibratory plate 632, and connected to the slide rail 635.

[0065] The ball milling unit 10, material storage unit 20, pressing and molding unit 30, sintering unit 40, grinding unit 50, drying and deburring unit 60 and control unit 70 are electrically connected. During the production process, the status of the equipment is fed back to the control unit 70 (operating computer). The control unit 70 has a built-in MES system. The MES system regulates the continuous production system process based on the feedback data.

[0066] The continuous production device for ferrite tiles based on the MES system of the present invention realizes intelligent manufacturing of ferrite tiles through the MES system, which can improve the production efficiency of ferrite tiles, improve the process capability index cpk of the main quality characteristics of the product, and make the product more stable and controllable.

[0067] It should be noted that in actual production, the number of production units can be increased to meet actual production needs. In existing technologies, the flow between each process of ferrite magnet tiles is discontinuous, requiring manual operation, which greatly reduces production efficiency and equipment utilization. Therefore, the inventors of this invention connect the production equipment of each process one-to-one using pipelines to achieve material flow. However, based on the requirements of different ferrite magnet tiles, the requirements for production equipment and reaction conditions also differ. For example, when ball mill unit 10 is a vertical mill, the obtained material is coarser; when a ball mill is used, the obtained material is finer. The above production line requires many-to-many production processes, and a one-to-one conveying method cannot meet production requirements. Therefore, the inventors of this invention combine the production processes with a MES system. The identification information of each material conveying device received by the information acquisition device is matched with the identification information of the corresponding production unit through the MES system database to achieve continuous production of ferrite magnet tiles, and is suitable for many-to-many cross-production.

[0068] Furthermore, throughout the entire production process of this system, the material changes from powder to slurry, and the slurry is pressed and shaped into blocks. Therefore, the process involves selecting pipelines and pumping methods for slurry, selecting conveying methods for blocks, and selecting negative pressure and pipeline methods for powder. The core improvement of this invention is to achieve continuous production, without involving improvements to pipelines, etc.

[0069] Furthermore, the information acquisition device is a barcode scanner, and the identification information is carried by barcodes, which are affixed to the exterior of the production unit and the material conveying device. The identification information mainly includes the parameters of the equipment and the physical parameters of the raw materials and products. The barcode scanner obtains the above information and matches it with the information of the material conveying device. If the information matches successfully, the material conveying device supplies materials to the production unit, realizing continuous production and thus solving the current problem of multiple units operating independently.

[0070] Example 1

[0071] The continuous production process of ferrite magnetic tiles based on the MES system in this embodiment includes the following steps:

[0072] S1. Modeling: Input the production parameters required for ferrite tiles into the control unit 70, which contains the MES system database; the MES system is a commercially available, mature production process control software that can be installed on multiple hardware platforms.

[0073] S2. Batching: Batching is carried out according to the composition of the ferrite magnetic tiles being produced. The information of the raw materials is recorded on barcodes. The information on the barcodes is identified by a barcode scanner to determine the type of raw material. The MES system outputs instructions according to the composition of the ferrite magnetic tiles being produced, and the batching unit performs the batching.

[0074] S3. Ball Milling: Based on the MES system, an empty ball milling unit 10 is determined. Ferrite magnetic tile raw materials are transported to the horizontal ball mill of the ball milling unit 10. After being ground to the specified particle size parameters, the raw materials are transported to the storage unit 20. The particle size requirement is 0.5 micrometers. The discharge port of the horizontal ball mill is equipped with a filter screen with the above-mentioned pore size. Through the filtering effect of the filter screen, particles that meet the particle size requirements are discharged.

[0075] In the ball milling process described above, the ratio of balls:material:water is 15:1:2, and the ball milling is carried out on a rolling wet horizontal ball mill at a speed of 100 r / min for 16 h. A dispersant may be added, which is a mixture of calcium gluconate and sorbitol, wherein the proportion of calcium gluconate to sorbitol by weight is 0.5 wt% and 0.8 wt% respectively.

[0076] S4. Material Storage: Based on the liquid level information in several storage tanks of the material storage unit 20, the MES system determines that one of the storage tanks can be fed with material. The storage tank is equipped with a liquid level gauge or laser liquid level meter, etc. The data is collected by the liquid level gauge or laser liquid level meter and fed back to the control unit 70, and input into the MES system for statistics and analysis.

[0077] S5. Pressing and molding: Based on the liquid level information of the storage tank, determine the discharge storage tank, and then determine one of the large filter presses in the pressing and molding unit 30 that can feed the material based on the MES system; control the moisture content of the mixture at 30wt%; press the slurry into a blank, the molding magnetic field is 850 kA / m and parallel to the pressing direction, and the pressing pressure is 400 MPa.

[0078] S6. Sintering: The billet pressed and formed in S5 is transported to the programmable box furnace of sintering unit 40 and sintered based on the output instructions of the MES system; the sintering temperature is raised from 200℃ to 1190℃±20℃ and the sintering time is 3 hours; an AGV transfer cart 31 is set between the sintering unit 40 and the pressing and forming unit 30 to realize the fully automated production process.

[0079] S7. Grinding: Grind the rough ferrite magnetic tile obtained by S6 sintering, including the two end faces of the shaft length, the chord width and the bottom plane, and the inner and outer arc chamfers of the two end faces of the shaft length. Roughly grind the inner and outer arcs of the magnetic tile, and finely grind the inner and outer arcs of the magnetic tile.

[0080] S8. Drying and deburring: Based on the output instructions of the MES system, the ferrite magnetic tiles obtained by grinding are cleaned and dried (at a temperature of 150℃) to remove residual moisture on the surface; a vibratory plate 632 and abrasive are used for processing. The amount of abrasive added is 0.8kg / 10kg of magnetic tile. The abrasive is CaSiO4 and the particle size of the above material is 1.0mm.

[0081] Example 2

[0082] The continuous production process of ferrite magnetic tiles based on the MES system in this embodiment includes the following steps:

[0083] S1. Modeling: Input the production parameters required for ferrite tiles into the control unit 70, which contains the MES system database; the MES system is a commercially available, mature production process control software that can be installed on multiple hardware platforms.

[0084] S2. Batching: Batching is carried out according to the composition of the ferrite magnetic tiles being produced. The information of the raw materials is recorded on barcodes. The information on the barcodes is identified by a barcode scanner to determine the type of raw material. The MES system outputs instructions according to the composition of the ferrite magnetic tiles being produced, and the batching unit performs the batching.

[0085] S3. Ball Milling: Based on the MES system, an empty ball milling unit 10 is determined. Ferrite magnetic tile raw materials are transported to the horizontal ball mill of the ball milling unit 10. After being ground to the specified particle size parameters, the raw materials are transported to the storage unit 20. The particle size requirement is 0.8 micrometers. The discharge port of the horizontal ball mill is equipped with a filter screen with the above-mentioned pore size. Through the filtering effect of the filter screen, particles that meet the particle size requirements are discharged.

[0086] In the above ball milling process, the ratio of balls:material:water is 15:1:2, and the ball milling is carried out on a rolling wet horizontal ball mill with a rotation speed of 80 r / min for 12 hours. A dispersant can be added, which is a mixture of calcium gluconate and sorbitol, wherein the proportion of calcium gluconate to the weight of the ball milled material is: calcium gluconate ≤ 0.3 wt%, sorbitol ≤ 0.5 wt%.

[0087] S4. Material Storage: Based on the liquid level information in several storage tanks of the material storage unit 20, the MES system determines that one of the storage tanks can be fed with material. The storage tank is equipped with a liquid level gauge or laser liquid level meter, etc. The data is collected by the liquid level gauge or laser liquid level meter and fed back to the control unit 70, and input into the MES system for statistics and analysis.

[0088] S5. Pressing and molding: Based on the liquid level information of the storage tank, determine the discharge storage tank, and then determine one of the large filter presses in the pressing and molding unit 30 that can feed the material based on the MES system; control the moisture content of the mixture at 35wt%; press the slurry into a blank, the molding magnetic field is 900 kA / m and parallel to the pressing direction, and the pressing pressure is 450 MPa.

[0089] S6. Sintering: The billet pressed and formed in S5 is transported to the programmable box furnace of sintering unit 40 and sintered based on the output instructions of the MES system; the sintering temperature is raised from 200℃ to 1190℃±20℃ and the sintering time is 2 hours; an AGV transfer cart 31 is set between the sintering unit 40 and the pressing and forming unit 30 to realize the fully automated production process;

[0090] S7. Grinding: Grind the rough ferrite magnetic tile obtained by S6 sintering, including the two end faces of the shaft length, the chord width and the bottom plane, and the inner and outer arc chamfers of the two end faces of the shaft length. Roughly grind the inner and outer arcs of the magnetic tile, and finely grind the inner and outer arcs of the magnetic tile.

[0091] S8. Drying and deburring: Based on the output instructions of the MES system, the ferrite magnetic tiles obtained by grinding are cleaned and dried (at a temperature of 120℃) to remove residual moisture on the surface; a vibratory plate 632 and abrasive are used for processing. The amount of abrasive added is 0.5kg / 10kg of magnetic tile. The abrasive is γ-AlOOH and the particle size of the above material is 0.8mm.

[0092] Example 3

[0093] The continuous production process of ferrite magnetic tiles based on the MES system in this embodiment includes the following steps:

[0094] S1. Modeling: Input the production parameters required for ferrite tiles into the control unit 70, which contains the MES system database; the MES system is a commercially available, mature production process control software that can be installed on multiple hardware platforms.

[0095] S2. Batching: Batching is carried out according to the composition of the ferrite magnetic tiles being produced. The information of the raw materials is recorded on barcodes. The information on the barcodes is identified by a barcode scanner to determine the type of raw material. The MES system outputs instructions according to the composition of the ferrite magnetic tiles being produced, and the batching unit performs the batching.

[0096] S3. Ball Milling: Based on the MES system, an empty ball milling unit 10 is determined. Ferrite magnetic tile raw materials are transported to the horizontal ball mill of the ball milling unit 10. After being ground to the specified particle size parameters, the raw materials are transported to the storage unit 20. The particle size requirement is 1.0 micrometers. The discharge port of the horizontal ball mill is equipped with a filter screen with the above-mentioned pore size. Through the filtering effect of the filter screen, particles that meet the particle size requirements are discharged.

[0097] In the above ball milling process, the ratio of balls:material:water is 15:1:2, and the ball milling is carried out on a rolling wet horizontal ball mill with a rotation speed of 90 r / min for 14 h. A dispersant can be added, which is a mixture of calcium gluconate and sorbitol, wherein the proportion of calcium gluconate to sorbitol by weight is 0.1 wt% and 0.5 wt% respectively.

[0098] S4. Material Storage: Based on the liquid level information in several storage tanks of the material storage unit 20, the MES system determines that one of the storage tanks can be fed with material. The storage tank is equipped with a liquid level gauge or laser liquid level meter, etc. The data is collected by the liquid level gauge or laser liquid level meter and fed back to the control unit 70, and input into the MES system for statistics and analysis.

[0099] S5. Pressing and molding: Based on the liquid level information of the storage tank, determine the discharge storage tank, and then determine one of the large filter presses in the pressing and molding unit 30 that can feed the material based on the MES system; control the moisture content of the mixture at 40wt%; press the slurry into a blank, with a molding magnetic field of 850 kA / m and parallel to the pressing direction, and a pressing pressure of 400 MPa.

[0100] S6. Sintering: The billet pressed and formed in S5 is transported to the programmable box furnace of sintering unit 40 and sintered based on the output instructions of the MES system; the sintering temperature is raised from 200℃ to 1190℃±20℃ and the sintering time is 2 hours; an AGV transfer cart 31 is set between the sintering unit 40 and the pressing and forming unit 30 to realize the fully automated production process;

[0101] S7. Grinding: Grind the rough ferrite magnetic tile obtained by S6 sintering, including the two end faces of the shaft length, the chord width and the bottom plane, and the inner and outer arc chamfers of the two end faces of the shaft length. Roughly grind the inner and outer arcs of the magnetic tile, and finely grind the inner and outer arcs of the magnetic tile.

[0102] S8. Drying and deburring: Based on the output instructions of the MES system, the ferrite magnetic tiles obtained by grinding are cleaned and dried (at a temperature of 150℃) to remove residual moisture on the surface; a vibratory plate 632 and abrasive are used for processing. The amount of abrasive added is 0.8kg / 10kg of magnetic tile. The abrasive is BaSO4 with a particle size of 0.8mm.

[0103] It should be stated that the above specific embodiments are intended to demonstrate the practical application of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications, substitutions, or improvements within the spirit and principles of the present invention. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A continuous production process for ferrite magnetic tiles based on a MES system, characterized in that, Including the following steps: S1. Modeling: Input the production parameters required for ferrite tiles into the control unit (70) containing the MES system database. S2. Batching: The MES system outputs instructions on the composition of the produced ferrite magnetic tiles, and the batching unit performs batching. S3. Ball milling: Based on the MES system, the vacant ball milling unit (10) is determined. The ferrite magnetic tile raw material is transported to the vertical tower mill or horizontal ball mill of the ball milling unit (10), and after being ground to the specified particle size parameters, it is transported to the storage unit (20). S4, Storage: Based on the liquid level information in several storage tanks of the storage unit (20), determine one of the storage tanks that can be fed based on the MES system; S5, Pressing and Molding: Based on the liquid level information of the storage tank, determine the discharge storage tank, and then determine one of the filter presses in the pressing and molding unit (30) that can feed the material based on the MES system; S6, Sintering: The billet pressed and formed in S5 is transported to the programmable box furnace of the sintering unit (40) and sintered based on the output instructions of the MES system; S7. Grinding: Grind the rough ferrite magnetic tile obtained by S6 sintering, including the two end faces of the shaft length, the chord width and the bottom plane, and the inner and outer arc chamfers of the two end faces of the shaft length. Roughly grind the inner and outer arcs of the magnetic tile, and finely grind the inner and outer arcs of the magnetic tile. S8. Drying and deburring: Based on the output instructions of the MES system, the ferrite magnetic tiles obtained by grinding are cleaned and dried to remove residual moisture on the surface; a vibratory plate (632) and abrasive are used for processing. The abrasive is an inorganic material with a Mohs hardness of no more than 5, such as BaSO4, CaSiO4, CaSiO3 or γ-AlOOH, and the particle size of the abrasive is 0.5-1.0mm.

2. The continuous production process of ferrite magnetic tiles based on a MES system according to claim 1, characterized in that, In step S3, the particle size requirement is 0.5-1.0 micrometers, and the discharge port of the vertical tower mill or horizontal ball mill is equipped with a filter screen with a pore size of 0.5-1.0 micrometers.

3. The continuous production process of ferrite magnetic tiles based on a MES system according to claim 2, characterized in that, In the ball milling process, the ratio of balls:material:water is 15:1:2, and the ball milling is carried out on a rolling wet horizontal ball mill with a rotation speed of 80-100 r / min for 12-16 h.

4. The continuous production process of ferrite magnetic tiles based on a MES system according to claim 3, characterized in that, In the pressing and molding process, the moisture content of the mixture is controlled at 30-40wt%; the slurry is pressed into a blank, the molding magnetic field is 850-950 kA / m and parallel to the pressing direction, and the pressing pressure is 400-500 MPa.

5. The continuous production process of ferrite magnetic tiles based on a MES system according to claim 4, characterized in that, In the sintering process, the sintering temperature is increased from 200℃ to 1190℃±20℃, and the sintering time is 2-3 h.

6. A production apparatus for the continuous production process of ferrite magnetic tiles based on a MES system according to any one of claims 1 to 5, characterized in that, The device includes several production units, each with its own identification information. The device also includes a control unit (70) for the MES system database. At least one material conveying device is provided between two adjacent production units. Each material conveying device has its own identification information, and the identification information of each material conveying device is associated with the material status. The device also includes an information acquisition device for obtaining the identification information of each production unit and the identification information of each material conveying device. The control unit (70) is connected to the information acquisition device and binds the identification information of each material conveying device received from the information acquisition device with the identification information of the corresponding production unit through the MES system database. The corresponding production unit is the production unit that receives all materials associated with the identification information of the material conveying device.

7. The production apparatus according to claim 6, characterized in that, The production unit includes a batching unit for ferrite tile components; a ball milling unit (10) for grinding ferrite tile raw materials to a specified particle size; a storage unit (20) for storing ball mill slurry, wherein the material conveying device between the storage unit (20) and the ball milling unit (10) includes at least two first conveying pipes, each first conveying pipe being equipped with an electromagnetic ball valve; a pressing and forming unit (30) for slurry filtration, wherein the pressing and forming unit (30) is a large filter press; wherein the material conveying device between the storage unit (20) and the pressing and forming unit (30) includes at least two second conveying pipes, each second conveying pipe being equipped with an electromagnetic ball valve; and a sintering unit (40) for billets, wherein the sintering unit (40) is a programmable box type. Furnace; the material conveying device between the sintering unit (40) and the pressing and forming unit (30) is an AGV transfer trolley (31); a grinding unit (50) for sintering magnetic tiles, the grinding unit (50) including a double-end face grinder, a single-station grinder, a four-station automatic chamfering grinder, a double-station through-type tile-shaped magnet grinder, a single-station through-type tile-shaped magnet grinder, a single-station through-type tile-shaped magnet grinder and a chamfering 4R angle grinder connected in sequence; the material conveying device between the sintering unit (40) and the grinding unit (50) includes at least one first conveyor belt; and a drying and deburring unit (60), the material conveying device between the grinding unit (50) and the drying and deburring unit (60) includes at least one second conveyor belt (66).

8. The production apparatus according to claim 7, characterized in that, The drying and deburring unit (60) includes an ultrasonic cleaning and drying machine and a spiral vibration device. The ultrasonic cleaning and drying machine includes an ultrasonic cleaning section (61) and a hot air drying section (62). The ultrasonic cleaning section (61) includes a water tank (611), an ultrasonic transmitter (612), and a chain plate (613). The ultrasonic transmitter is placed on both sides of the water tank (611), and the chain plate (613) is placed in the water tank (611). The hot air drying section (62) includes a hot air pipe (621) and a drying chamber (622). The hot air pipe (621) is placed around the upper part of the drying chamber (622), and the chain plate (613) passes through the drying chamber (622).

9. The production apparatus according to claim 8, characterized in that, The spiral vibration device includes a spiral vibration component (63) and an abrasive feeding component (64). The abrasive feeding component (64) includes a base (641), a feeding vibrator (642), and a hopper (643) placed on the base (641). The feeding vibrator (642) is located above the base (641), and the hopper (643) is located above the feeding vibrator (642). It also includes a guide chute (644), which extends obliquely above the spiral vibration component (63). The hopper (643) stores abrasive material, and the abrasive material is intermittently fed into the spiral vibration component (63) by the feeding vibrator (642).

10. The production apparatus according to claim 9, characterized in that, The helical vibration component (63) includes a frame (631), a vibratory plate (632), a helical track (633), a track outlet (634), and a slide rail (635). The vibratory plate (632) is mounted on the frame (631), the helical track (633) is mounted inside the vibratory plate (632), and the track outlet (634) is located at the end of the helical track (633), placed on the top surface of the vibratory plate (632), and connected to the slide rail (635).

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