Neodymium-iron-boron rare earth alloy batching device

Abstract

The utility model discloses a neodymium iron boron rare earth alloy batching device which comprises a machine frame, a plurality of stock bins are fixedly installed on the top of the machine frame, a quantifying mechanism installed on the machine frame is arranged below each stock bin, a plurality of funnels installed on the machine frame are arranged below the quantifying mechanisms, and the funnels are arranged on the machine frame. A manual material supplementing operation box and a manual material supplementing barrel are fixedly installed on the two sides of the quantifying mechanism respectively, the quantifying mechanism comprises a gate frame, the gate frame is fixed to the rack, a guide groove of the gate frame is slidably connected with a gate plate, and the gate plate is provided with an electronic platform scale; and a funnel feeder mounted on the rack is arranged between the flashboard and the funnel. According to the utility model, through the matching of the quantifying mechanism, the plurality of stock bins and the funnels, various different metal alloy ingredients can be weighed according to the proportion requirement of manual input, the alloy ingredients prepared according to the proportion are mixed and loaded into the charging basket, and the production efficiency is improved by matching with the manual accurate control in the dynamic production process.

Description

Technical Field

[0001] The utility model belongs to the technical field of NdFeB rare earth alloy batching, in particular to a NdFeB rare earth alloy batching device. Background Art

[0002] The primary raw materials for NdFeB magnets include the rare earth metal neodymium (Nd), the metallic element iron (Fe), and the non-metallic element boron (B). Furthermore, to achieve different properties, small amounts of other elements, such as dysprosium (Dy), terbium (Tb), cobalt (Co), niobium (Nb), gallium (Ga), aluminum (Al), and copper (Cu), may be added. The addition of these elements helps improve the performance of NdFeB magnets, resulting in a higher magnetic energy product and better magnetic retention.

[0003] When mixing NdFeB rare earth alloy raw materials, different proportions of raw materials need to be mixed and proportioned. The existing proportioning device is difficult to control the accuracy when proportioning the raw materials, resulting in low production efficiency. Utility Model Content

[0004] The present invention aims to solve the problems in the prior art and proposes the following technical solutions:

[0005] The NdFeB rare earth alloy batching device includes a frame, a plurality of silos are fixedly installed on the top of the frame, a quantitative mechanism installed on the frame is provided below each of the silos, a plurality of funnels installed on the frame are provided below the quantitative mechanism, and a manual feeding operation box and a manual feeding bucket are fixedly installed on both sides of the quantitative mechanism.

[0006] As a preferred embodiment of the above technical solution, the quantitative mechanism includes a gate frame, which is fixed on the frame, and the guide groove of the gate frame is slidably connected with a gate plate, the gate plate is equipped with an electronic scale, and a funnel feeder installed on the frame is provided between the gate plate and the funnel.

[0007] As a preferred embodiment of the above technical solution, the side wall of the gate plate is fixedly connected with a push plate, the push plate passes through the guide groove of the gate frame, the outer wall of the gate frame is fixedly installed with a cylinder through a fixing seat, and the output end of the cylinder is fixedly connected to the push plate.

[0008] As a preferred embodiment of the above technical solution, a partition is fixedly installed on the top of the gate frame, a metering hopper is fixedly connected to the top of the partition, the metering hopper is located directly below the silo, and a metering hopper feeder is installed between the metering hopper and the silo.

[0009] The beneficial effects of the utility model are:

[0010] 1. The utility model uses a quantitative mechanism and the cooperation of multiple silos and funnels to achieve the measurement and weighing of a variety of different metal alloy ingredients according to the manually input ratio requirements, and mixes the alloy ingredients prepared in proportion into the material barrel, which cooperates with manual precise control in the automated production process to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The figure shows a schematic structural diagram of a NdFeB rare earth alloy batching device in an embodiment;

[0012] Figure 2 What is shown is a schematic structural diagram of the quantitative mechanism in the embodiment;

[0013] Figure 3 Shown is a schematic structural diagram of a metering bucket and a gate plate in an embodiment.

[0014] Description of reference numerals:

[0015] 1. Frame; 2. Silo; 3. Dosing mechanism; 31. Gate frame; 32. Partition; 33. Dosing bucket; 34. Push plate; 35. Gate; 36. Fixed seat; 37. Cylinder; 4. Manual feeding operation box; 5. Manual feeding bucket; 6. Hopper feeder; 7. Funnel. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0017] There are two options for batching.

[0018] Each batch weighs approximately 600kg, with the following ingredients: Iron (64.70%) (388.2kg), Neodymium (28.70%) (172.2kg), Dysprosium (1.80%) (10.8kg), Holmium (1.50%) (9kg), Ferroboron (0.98%) (5.88kg), Cobalt (1.00%) (6kg), Aluminum (0.5%) (3kg), Copper (0.15%) (3kg), Zirconium (0.22%) (1.32kg), Terbium (0.15%) (0.9kg), Ferrogadolinium (0.15%) (0.9kg), and Samarium (0.15%) (38.7kg). The prepared materials are placed in storage barrels of the specified specifications, with three barrels used per batch.

[0019] Each batch weighs approximately 800kg, with the following ingredients: Iron (64.70%) (517.6kg), Neodymium (28.70%) (229.6kg), Dysprosium (1.80%) (14.4kg), Holmium (1.50%) (12kg), Ferroboron (0.98%) (7.84kg), Cobalt (1.00%) (8kg), Aluminum (0.5%) (4kg), Copper (0.15%) (1.2kg), Zirconium (0.22%) (1.76kg), Terbium (0.15%) (1.2kg), Ferrogadolinium (0.15%) (1.2kg), and Samarium (0.15%) (1.2kg). The prepared materials are loaded into storage barrels of specified specifications, with four barrels per batch. Forty batches are produced daily.

[0020] Example

[0021] like Figure 1 、 Figure 2 and Figure 3 As shown, the NdFeB rare earth alloy batching device includes a frame 1, a plurality of silos 2 are fixedly mounted on the top of the frame 1, a quantitative mechanism 3 mounted on the frame 1 is provided below each silo 2, a plurality of funnels 7 mounted on the frame 1 are provided below the quantitative mechanism 3, and a manual feeding operation box 4 and a manual feeding bucket 5 are fixedly mounted on both sides of the quantitative mechanism 3. Since iron and praseodymium-neodymium account for a large proportion of the total batching, in order to ensure that the silos 2 can meet the batching needs of 40 batches a day, we set up three silos 2 for iron and three silos 2 for praseodymium-neodymium, which are iron silo 1, iron silo 2, iron silo 3, praseodymium-neodymium silo 1, and praseodymium-neodymium silo 2 from right to left. And three praseodymium and neodymium warehouses, among which the iron warehouse one, iron warehouse two and iron warehouse three share a funnel 7, the praseodymium and neodymium warehouse one, praseodymium and neodymium warehouse two and praseodymium and neodymium warehouse three share a funnel 7, among which the praseodymium and neodymium warehouse three is used as a spare warehouse and can be used to place other metal materials. The dimensions of the silo 2 are length: 1500mm, width: 1500mm, height: 800mm, discharge port: 300mm×300mm, silo 2 has a cover and a refill indicator light, and the cover is marked with words to prompt the type of material stored therein. When the indicator light for refilling turns red, a prompt is given, and the cover is manually opened for refilling. An air hammer vibration structure is set next to the silo 2 to avoid blockage in the silo, and the air hammer switch is triggered manually.

[0022] It should be noted that the calculation of the volume of silo 2 is as follows: silo 2 for praseodymium-neodymium, 229kg*40 batches, requires a total of 9184kg of raw materials. According to its density, the required volume is 1.1412 cubic meters. Considering a volume ratio of 50%, 2.2824 cubic meters are required. According to the actual situation, the volume of a single praseodymium-neodymium block is large, and the gaps between the blocks stacked together are large, so the volume needs to be doubled, taking 4 cubic meters. Set up 2 bins, each with 2 cubic meters. The praseodymium-neodymium bin 1 and the praseodymium-neodymium bin 2 are precision matching bins, which can be manually supplemented. In addition, a 2-cubic-meter praseodymium-neodymium bin 3 is set as a spare bin. The volume of each bin is 2 cubic meters. The praseodymium-neodymium spare bin can not only hold praseodymium-neodymium materials, but also other metal materials, which can be manually defined on the device operation screen according to the subsequent formula.

[0023] There are 2,517.6kg*40 batches of iron silos, which require a total of 20,704kg of raw materials. The required volume is 2.634 cubic meters based on its density. Considering a volume ratio of 50%, 5.26 cubic meters are required. The actual iron blocks are small and the empty volume occupied by more particles is large, so the volume of the iron silo should be expanded to 6.6 cubic meters. Each silo is 2.2 cubic meters, for a total of 3 silos. Iron silos 1 and 2 are coarse batching silos, and iron silos 3 are fine batching silos. Manual compensation can be made. The coarse batching and fine batching silos can be set and changed in the program. When two or more barrels of one ingredient are loaded, the coarse batching silo will be given priority to 200kg, which can be set, and the rest will be manually compensated by the fine batching silo.

[0024] Among the five metals, dysprosium, holmium, boron, cobalt and aluminum, boron has the lowest density and a slightly larger volume. According to its density, the volume required for 40 batches of materials per day is 0.13 cubic meters. Considering the volume ratio, the volume of these five silos is set to 0.23 cubic meters. Among the five metals, copper, zirconium, terbium, gadolinium iron and samarium, zirconium has the lowest density and the largest volume. According to its density, the volume required for 40 batches of materials per day is 0.011 cubic meters. Considering the volume ratio, the volume of these five silos is set to 0.17 cubic meters. All of them are precision-matched silos, and manual compensation can be used.

[0025] The remaining 10 alloys are grouped together, with one hopper 2 for each material. The hoppers 2 for the remaining alloys are smaller and can be arranged in two rows with two funnels 7. Among them, the six materials of gadolinium, samarium, terbium, copper, zirconium and aluminum share one funnel 7, and the four materials of boron, holmium, cobalt and dysprosium share one funnel 7.

[0026] like Figure 3 As shown, the quantitative mechanism 3 includes a gate frame 31, which is fixed on the frame 1, and a gate plate 35 is slidably connected to the guide groove of the gate frame 31, and the gate plate 35 is installed with an electronic scale, and a funnel feeder 6 installed on the frame 1 is provided between the gate plate 35 and the funnel 7.

[0027] It should be noted that electronic platform scales need to be customized. Each scale uses 4 high-precision weighing sensors, and the sensors are all imported sensors. The electronic platform scale adopts static weighing. When the quantitative bucket 33 stops feeding, it must be delayed for 5 to 10 seconds before the weighing value of the electronic scale is the actual weighing value. The static weighing has high accuracy. A manual feeding operation box 4 is installed next to the electronic scale. Except for iron, the weighing is one-time weighing, and the weighing of iron is 2 to 3 times. Considering the impact of the material on the scale, a shock-absorbing buffer pad is added above the sensor to reduce the impact of the falling material on the platform scale below and extend the service life. If the sensor of the scale is damaged, it can be replaced with a new sensor after calibration and plugged into the corresponding interface without affecting the operation of the entire electronic platform scale.

[0028] The sensor uses Mettler Toledo METTLLER TOLEDO brand weighing sensor, the specific parameters are as follows: model: MT1260-750kg, range: 0-750kg, sensitivity: 2±0.2mV, material: stainless steel, accuracy: OIML R60 C3, protection level: IP67.

[0029] like Figure 3 As shown, the side wall of the gate plate 35 is fixedly connected to a push plate 34 , which passes through the guide groove of the gate frame 31 , and the outer wall of the gate frame 31 is fixedly mounted with a cylinder 37 through a fixing seat 36 , and the output end of the cylinder 37 is fixedly connected to the push plate 34 .

[0030] like Figure 1 and Figure 3 As shown, a partition 32 is fixedly installed on the top of the gate frame 31, a quantitative bucket 33 is fixedly connected to the top of the partition 32, and a quantitative bucket feeder is installed between the quantitative bucket 33 and the silo 2.

[0031] The hopper feeder 6 and the quantitative hopper feeder both use electromagnetic feeders. The function of the electromagnetic feeder is to smoothly supply the material in the silo 2 to the quantitative hopper 33 as required. The electromagnetic feeder has two feeding speeds, fast and slow. The specific parameters are as follows: model: GZ3, production capacity: 25T / h, feeding particle size: 75mm, double amplitude: 1.75mm, vibration frequency: 3000r / min, power supply voltage: 220V, active power: 0.2KW, weight: 233KG.

[0032] The parameters of the electromagnetic feeder used in the remaining silo 2 are as follows: model: GZ1, production capacity: 5T / h, feeding particle size: 50mm, double amplitude: 1.75mm, vibration frequency: 3000r / min, power supply voltage: 220V, active power: 0.06KW, weight: 77KG.

[0033] The funnel 7 is used to collect the materials falling from the metering hoppers 33 above, and release the materials to the material barrel directly below through the funnel 7. In order to avoid blockage and material residue, each funnel 7 is provided with a vibrator to facilitate the smooth falling of the material into the material barrel. Only when the bottom valve of the metering hopper 33 above the funnel 7 is opened, the corresponding funnel 7 vibrator will work. If the bottom valve of the metering hopper 33 is not opened, the vibrator will not work.

[0034] The quantitative bucket 33 for zirconium, copper, samarium, terbium, and gadolinium is 2 kg and has a volume of 0.0028 cubic meters. The quantitative bucket 33 for boron, holmium, aluminum, cobalt, and dysprosium is 20 kg and has a volume of 0.0067 cubic meters.

[0035] Specifically, the metering bucket 33 is straight-through, and the gate plate 35 is driven by the cylinder 37, which has a certain vibration, so that the powder attached to the barrel wall can fall. The gap between the gate plate 35 and the guide groove of the gate frame 31 is 0.1mm, and there will be no leakage. The metering bucket 33 has different volumes according to the amount of alloy used. When the metering bucket 33 is metering, the bottom valve of the silo 2 is closed, and the bottom valve is opened after the weighing is completed. The metering bucket 33 for iron and praseodymium and neodymium is 200kg in quantity and has a volume of 0.051 cubic meters. Since the iron and praseodymium and neodymium are relatively large in size, considering the need for manual batching, an artificial feeding operation box 4 and an artificial feeding bucket 5 are provided on the batching platform to facilitate manual batching.

[0036] Control scheme selection: The device is equipped with two control schemes: 600kg and 800kg. When the total amount of a batch of materials is 600kg, 3 barrels are required to load a batch of materials; when the total amount of a batch of materials is 800kg, 4 barrels are required to load a batch of materials, which are barrel 1, barrel 2, barrel 3 and barrel 4 from right to left.

[0037] When the weight is 800kg, the batching process is as follows:

[0038] When the batching starts, the iron bin 1 and the iron bin 2 are used as coarse batching bins, the iron bin 3 is used as fine batching bin, the praseodymium-neodymium bin 1 or the praseodymium-neodymium bin 2 is used as fine batching bin, and the feeders under the copper, zirconium, terbium, gadolinium, samarium, dysprosium, holmium, boron, cobalt, and aluminum fine batching bins are started simultaneously to feed the respective quantitative hoppers 33. The funnels 7 are funnel 1, funnel 2, funnel 3, and funnel 4 from right to left.

[0039] a) Iron ingredients

[0040] Iron batching is done in two stages: coarse batching and fine batching. ① Coarse Iron Batching: When batching starts, the electromagnetic vibrating feeders in the coarse batching bins (Iron Bin 1 and Iron Bin 2) feed 200kg of pre-set iron into the dosing hopper 33. After waiting 5 seconds for the value on the electronic scale to stabilize, a prompt appears for manual confirmation. After manual confirmation, the bottom valve of dosing hopper 33 opens and releases the material into hopper 1. Funnel 1 then discharges the material into bucket 1. After a delay, when all the material has been discharged, the flat car moves forward approximately 400mm, positioning bucket 2 directly below hopper 1. After manual confirmation, the material from iron bin 2 is discharged into bucket 2 in the same manner as for iron bin 1. The device automatically calculates the required batching weight for iron bin 3 based on the weights measured in the dosing hopper 33 below iron bins 1 and 2, and performs fine batching. This calculated value is the fine batching amount for iron. ② Fine Iron Batching: The device automatically initiates batching of the fine batching bins in iron bin 3. The electromagnetic vibrating feeder in the third iron bin starts feeding the fine iron content. When the weighing value in the metering hopper 33 reaches 80% of the fine iron content, the feeder slows down. When the weighing value reaches approximately 99% of the fine iron content, the electromagnetic vibrating feeder stops feeding and waits for 5 seconds for the value on the electronic scale to stabilize. The device compares the weighing value with the set value and displays the difference, issuing an alarm. The indicator light in the third iron bin illuminates, prompting manual adjustment. When the adjusted difference is within the device's set tolerance, the alarm is released, prompting manual confirmation. After manual confirmation, the bottom valve of the metering hopper 33 opens, releasing the material into hopper 1, which then pours the iron material into bucket 3. After a delay, when the material is fully discharged, the flatbed truck moves forward approximately 4000 mm, positioning bucket 4 directly below hopper 2.

[0041] b) PrNd ingredients

[0042] The device calculates the finely proportioned amount of 229.6 kg for the first or second praseodymium bins. The feeder feeds the material into metering hopper 33. When the weighing value in metering hopper 33 reaches 80% of the finely proportioned amount, the feeder slows down and feeds slowly. When the weighing value reaches approximately 99% of 229.6 kg, the electromagnetic vibrating feeder stops feeding and waits for 5 seconds for the value on the electronic scale to stabilize. The device compares the weighing value with the finely proportioned amount and displays the difference, issuing an alarm. The indicator light for the first or second praseodymium bin illuminates, prompting manual adjustment. When the adjusted difference is within the device's set tolerance, the alarm is released, prompting manual confirmation. After manually pressing the confirmation button, the bottom valve of the metering hopper 33 opens to release the material into the funnel 2, and the praseodymium-neodymium material is poured into the material bucket 4. After a delay, when the material is released, the flat car moves forward about 3400mm and moves the material bucket 3 to the bottom of the funnel 3. At this time, manual remote control adjustment and confirmation may be required because the sizes of the bucket and the feeding trolley are not uniform and the error is large.

[0043] c) Ingredients of the other ten alloys

[0044] The remaining ten alloys are batched in two stages. The first stage involves pouring four materials—boron, holmium, cobalt, and dysprosium—into Bucket 3. The second stage involves pouring six materials—gadolinium, samarium, terbium, copper, zirconium, and aluminum—into Bucket 3. ① First batching of four materials: When batching is initiated, the device automatically calculates the required weights for the ten alloy bins based on the input ratios. Boron, holmium, cobalt, and dysprosium are simultaneously fed into the four precision batching bins. When the weighing value in each bin's metering hopper 33 reaches 80% of the calculated precision amount, the feeder slows down. When the weighing value reaches approximately 99% of the calculated precision amount, the electromagnetic vibrating feeder stops feeding and waits for 5 seconds for the value on the electronic scale to stabilize. The device compares the difference between the weighing value and the set value, displays it, and issues an alarm. The indicator lights in the four bins illuminate, prompting manual correction. When the corrected difference is within the device's set tolerance, the alarm is released, prompting manual confirmation. After manual confirmation, the bottom valve of the metering hopper 33 is opened in the order of boron, holmium, cobalt, and dysprosium, and the materials are discharged into funnel three. Funnel three then discharges the materials into bucket three. After a delay, when all the materials have been discharged, the flat car moves forward approximately 1200mm, moving bucket three directly below funnel four. Manual remote adjustment and confirmation may be required at this time, as the buckets and the feeding trolley are not uniform in size, resulting in large errors. ② The second feeding of six materials: gadolinium, samarium, terbium, copper, zirconium, and aluminum are fed simultaneously by an electromagnetic feeder. When the weighing value of the metering hopper 33 of each bin reaches 80% of the calculated precise amount, the feeder slows down the feeding speed. When the weighing value reaches approximately 99% of the calculated precise amount, the electromagnetic vibrating feeder stops feeding and waits for 5 seconds for the value on the electronic scale to stabilize. The device compares the difference between the weighed value and the set value, displays it, and issues an alarm. The four bin indicators illuminate, prompting manual adjustment. When the adjusted difference is within the device's set tolerance, the alarm is released, prompting manual confirmation. After manual confirmation, the bottom valves of metering hoppers 33 are opened in a specific order to release the material into hopper 4, which then discharges the material into bucket 3. A delay occurs until all the material has been released.

[0045] At 600kg, batching process:

[0046] When the material batching starts, the iron bin 1 and the iron bin 2 are used as coarse batching bins, the iron bin 3 is used as fine batching bin, the praseodymium-neodymium bin 1 or the praseodymium-neodymium bin 2 is used as fine batching bin, and the feeders under the copper, zirconium, terbium, gadolinium, samarium, dysprosium, holmium, boron, cobalt, and aluminum fine batching bins are started at the same time to feed the respective quantitative buckets 33.

[0047] a) Iron ingredients

[0048] The iron batching is divided into two stages: the first is rough batching and the second is fine batching. ① Rough iron batching: When the batching is started, the electromagnetic vibrating feeders in the rough batching bins, Iron Bin 1 and Iron Bin 2, feed a total of 200kg of iron material to the metering hopper 33. Wait for 5 seconds until the value on the electronic scale stabilizes, and prompt manual confirmation. After manual confirmation, open the bottom valve of the metering hopper 33 and release the material to Funnel 1. Funnel 1 leaks the material into Bucket 1. After a delay for a period of time, when the material is released, the flat car moves forward about 400mm and moves Bucket 2 to directly under Funnel 1. ② Fine iron batching: The device automatically calculates the weight of the materials required for the Iron Bin 3 based on the weighing of the metering hopper 33 under the Iron Bin 1 and Iron Bin 2, and performs fine batching. The calculated value is the fine batching amount of iron. The device starts the fine batching of the Iron Bin 3. The electromagnetic vibrating feeder in the third iron bin starts feeding the fine iron content. When the weighing value in the metering hopper 33 reaches 80% of the fine iron content, the feeder slows down. When the weighing value reaches approximately 99% of the fine iron content, the electromagnetic vibrating feeder stops feeding and waits for 5 seconds for the value on the electronic scale to stabilize. The device compares the weighing value with the set value and displays the difference, issuing an alarm. The indicator light in the third iron bin illuminates, prompting manual adjustment. When the adjusted difference is within the device's set tolerance, the alarm is released, prompting manual confirmation. After manual confirmation, the bottom valve of the metering hopper 33 opens, releasing the material into hopper 1, which then pours the iron material into bucket 2. After a delay, when the material is fully discharged, the flatbed truck moves forward approximately 4000 mm, positioning bucket 3 directly below hopper 2.

[0049] a) Praseodymium-Nd ingredients:

[0050] The finely proportioned amount of praseodymium (Nd) in bin 1 or bin 2 is 172.2 kg. The feeder feeds the material into dosing hopper 33. When the weighing value in dosing hopper 33 reaches 80% of the finely proportioned amount, the feeder slows down and feeds slowly. When the weighing value reaches approximately 99% of 172.2 kg, the electromagnetic vibrating feeder stops feeding and waits for 5 seconds for the value on the electronic scale to stabilize. The device compares the weighing value with the finely proportioned amount and displays the difference, issuing an alarm. The indicator light for bin 1 or bin 2 illuminates, prompting manual adjustment. When the adjusted difference is within the device's set tolerance, the alarm is released, prompting manual confirmation. After manually pressing the confirmation button, the bottom valve of the metering hopper 33 opens to release the material into the funnel 2, and the praseodymium-neodymium material is poured into the material bucket 3. After a delay, when the material is released, the flat car moves forward about 2900mm and moves the material bucket 3 to the bottom of the funnel 3. At this time, manual remote control adjustment and confirmation may be required because the sizes of the bucket and the feeding trolley are not uniform and the error is large.

[0051] c) Ingredients of the other ten alloys

[0052] The remaining ten alloys are batched twice. The first batch is to pour four materials (boron, holmium, cobalt, and dysprosium) into Bucket 3. The second batch is to pour six materials (gadolinium, samarium, terbium, copper, zirconium, and aluminum) into Bucket 3. ① First batching of four materials: When batching is activated, the device automatically calculates the required weights for the ten alloy bins based on the input ratios. Boron, holmium, cobalt, and dysprosium are fed simultaneously into the four precision batching bins. When the weighing value in each bin's metering hopper 33 reaches 80% of the calculated precision batching amount, the feeder slows down. When the weighing value reaches approximately 99% of the calculated precision batching amount, the electromagnetic vibrating feeder stops feeding and waits for 5 seconds for the value on the electronic scale to stabilize. The device compares the difference between the weighing value and the set value, displays it, and issues an alarm. The indicator lights in the four bins illuminate, prompting manual correction. When the corrected difference is within the device's set tolerance, the alarm is released, prompting manual confirmation. After manual confirmation, the bottom valve of metering hopper 33 is opened in the order of boron, holmium, cobalt, and dysprosium, and the materials are then released into funnel 3 through funnel 3 and poured into bucket 3. After a delay, when all materials have been released, the flat car moves forward approximately 1200mm, positioning bucket 3 directly below funnel 4. ② The second feeding of six materials: gadolinium, samarium, terbium, copper, zirconium, and aluminum, is performed simultaneously by an electromagnetic feeder. When the weighing value in each bin's metering hopper 33 reaches 80% of the respective calculated precise amount, the feeder slows down. When the weighing value reaches approximately 99% of the respective calculated precise amount, the electromagnetic vibrating feeder stops feeding and waits 5 seconds for the value on the electronic scale to stabilize. The device compares the difference between the weighing value and the set value, displays it, and issues an alarm. The indicator lights on the four bins illuminate, prompting manual correction. When the corrected difference is within the device's set tolerance, the alarm is released, prompting manual confirmation. After manual confirmation, the bottom valve of the quantitative hopper 33 is opened in a certain order to release the material into the funnel four, and the funnel releases the material into the material barrel three, and a delay is made for a period of time until the material is released.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A NdFeB rare earth alloy batching device, comprising a frame (1), a plurality of silos (2) fixedly mounted on the top of the frame (1), characterized in that: A quantitative mechanism (3) mounted on a frame (1) is provided below each of the silos (2), a plurality of funnels (7) mounted on the frame (1) are provided below the quantitative mechanism (3), and a manual feeding operation box (4) and a manual feeding bucket (5) are fixedly mounted on both sides of the quantitative mechanism (3).

2. The NdFeB rare earth alloy batching device according to claim 1, characterized in that: The quantitative mechanism (3) includes a gate frame (31), the gate frame (31) is fixed on the frame (1), and a gate plate (35) is slidably connected to the guide groove of the gate frame (31), the gate plate (35) is installed with an electronic platform scale, and a funnel feeder (6) installed on the frame (1) is provided between the gate plate (35) and the funnel (7).

3. The NdFeB rare earth alloy batching device according to claim 2, characterized in that: The side wall of the gate plate (35) is fixedly connected to a push plate (34), and the push plate (34) passes through the guide groove of the gate frame (31). The outer wall of the gate frame (31) is fixedly mounted with a cylinder (37) through a fixing seat (36), and the output end of the cylinder (37) is fixedly connected to the push plate (34).

4. The NdFeB rare earth alloy batching device according to claim 2, characterized in that: A partition (32) is fixedly installed on the top of the gate frame (31), and a quantitative bucket (33) is fixedly connected to the top of the partition (32). The quantitative bucket (33) is located directly below the silo (2), and a quantitative bucket feeder is installed between the quantitative bucket (33) and the silo (2).

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