An automated raw material batching structure for the production of NdFeB thin films

Abstract

This invention relates to the field of NdFeB raw material batching technology, specifically proposing an automatic raw material batching structure for NdFeB sheet production, including a discharge mechanism, an end-sealing mechanism, and a pushing vibration mechanism. This invention, through the cooperation of the discharge mechanism, end-sealing mechanism, and pushing vibration mechanism, achieves a process of real-time monitoring of the weighing on the scale below the material cylinder during raw material weighting. The process sequentially opens the upper discharge hopper first and closes the lower discharge hopper, then closes the upper discharge hopper while simultaneously opening the lower discharge hopper, and finally closes both discharge hoppers. This prevents material from falling into the material cylinder from the discharge hoppers, which could cause the raw material in the cylinder to exceed the required weight, resulting in inaccurate raw material weighting. This significantly improves the accuracy of automated raw material weighting. Furthermore, it achieves integrated vibration discharge of residual material from vibrating screens one and two, as well as the two discharge hoppers, greatly improving the convenience and efficiency of residual material discharge.

Description

Technical Field

[0001] This invention relates to the field of NdFeB raw material batching technology, and specifically proposes an automatic raw material batching structure for the production of NdFeB thin sheets. Background Technology

[0002] Neodymium iron boron (NdFeB) sheets are a common form of NdFeB permanent magnet material, characterized by their thinness (typically ranging from a few micrometers to a few millimeters) and strong magnetism, and have special applications in many fields.

[0003] The production of neodymium iron boron sheets is a process of mixing and melting various metals into an alloy in a certain proportion. Each batch of products involves many types of metals and is mostly produced by automated weight proportioning. For example, existing technology uses a double-layer vibrating screen, where the upper vibrating screen outputs large materials and the lower vibrating screen compensates for small materials. This is combined with a weighbridge to achieve the proportioning and weighing of materials, thereby realizing the automated weighing of raw materials.

[0004] However, when weighing raw materials using the above method, whether it's the upper or lower vibrating screen conveying the raw materials from the corresponding discharge hopper into the material cylinder, once the large or small materials in the material cylinder reach the specified weight, the vibrating screen stops conveying, but the raw materials in the discharge hopper continue to fall downwards. This results in inaccurate weighing and proportioning of the raw materials, affecting the production quality of subsequent NdFeB sheets. Furthermore, when it is necessary to change the raw materials, it is difficult to simultaneously and clean the raw materials on the discharge hopper by simply vibrating the upper and lower vibrating screens. Manual cleaning of the raw materials on the upper and lower vibrating screens and the discharge hopper is still required, which greatly reduces the automation level and cleaning effect of the automatic batching structure for NdFeB sheet production when changing raw materials. Summary of the Invention

[0005] In view of the above problems, embodiments of the present invention provide an automatic raw material batching structure for the production of NdFeB thin films, so as to solve the technical problems in the related art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic raw material batching structure for the production of NdFeB thin sheets, comprising a box, a discharge adjustment mechanism, two discharge hoppers, a discharge mechanism, an end sealing mechanism, and a pushing vibration mechanism. The box is equipped with a vibrating screen one and a vibrating screen two. The vibrating screen one is equipped with a circular screen opening to filter small materials and convey large materials. The vibrating screen two is used to convey small materials to supplement the material shortage. A weighbridge is provided on one side of the box, and a roller conveyor is provided on the weighbridge to convey the material cylinder. A discharge port is provided on the side of the box near the roller conveyor.

[0007] Vibrating screen one and vibrating screen two are existing equipment used for vibrating conveying of large and small materials.

[0008] The discharge adjustment mechanism is installed on the vibrating screen and is used to adjust the size of the outlet of the vibrating screen. The discharge adjustment mechanism includes a lifting baffle that slides up and down and an electric slider that controls the lifting baffle.

[0009] The two discharge hoppers are installed at the discharge port and below the outlets of vibrating screen one and vibrating screen two, respectively; the discharge mechanism is located at the outlets of the two discharge hoppers.

[0010] The end-sealing mechanism is installed on the side wall of the box. The end-sealing mechanism includes two fixed support plates, which are connected to the box through connecting rods. A sealing plate one and a sealing plate two are slidably connected between the two fixed support plates. The sealing plate one and the sealing plate two are connected by an elastic locking part. The box is also provided with a driving part for driving the sealing plate two. When the driving part drives the sealing plate two, the sealing plate two cooperates with the sealing plate one and the elastic locking part. During the weighing and discharging process, the upper discharge hopper is opened first and then closed, while the lower discharge hopper is opened and closed at the same time.

[0011] The pushing vibration mechanism is installed between the two discharge hoppers and the box body. The two discharge hoppers cooperate with the top rod through the discharge mechanism to come into contact with the vibrating screen one and the vibrating screen two, and open the discharge mechanism to discharge the remaining material as the vibrating screen one and the vibrating screen two vibrate.

[0012] In one possible implementation, the drive unit includes a drive source (such as an electric slider, not shown in the figure) mounted on a fixed support plate for driving the sealing plate two to slide up and down.

[0013] In one possible implementation, the elastic locking part includes two fixed support plates with spring grooves on their opposite surfaces. Both sealing plate one and sealing plate two are equipped with ear plates that are slidably connected to the spring grooves. A compression spring is installed between the two ear plates that are opposite each other. Partitions that close the spring grooves are installed on the top of the ear plate of sealing plate one and on both sides of the lower end face of sealing plate one along its width direction. The partitions are used to prevent discharged materials from entering the spring grooves. The top of the partition on the ear plate of sealing plate one slides through the spring groove. The side wall of sealing plate two is provided with a connecting groove that corresponds to and slidably engages with the partition on sealing plate one. A snap-fit ​​assembly is installed between sealing plate one and sealing plate two.

[0014] In one possible implementation, the snap-fit ​​assembly includes a sealing plate with two receiving slots on both sides along its width. The receiving slots are located on the lower side of the sealing plate. A snap-fit ​​block is installed in the receiving slot via a return spring. The side of the snap-fit ​​block away from the return spring is inclined. A push plate is installed on the ear plate connected to the sealing plate. The top of the push plate is inclined, and a snap-fit ​​groove that mates with the snap-fit ​​block is opened on the side near the sealing plate. An unlocking element is provided at the bottom of the spring groove. A buffer element is installed between the ear plate connected to the sealing plate and the spring groove.

[0015] In one possible implementation, the unlocking element includes an L-shaped abutment mounted at the bottom of a spring groove, a through groove formed on the push plate and the ear plate connected to it, the through groove passing through the slot, the horizontal section of the L-shaped abutment slidingly entering the through groove, and a ball bearing rollingly connected to the end of the horizontal section of the L-shaped abutment.

[0016] In one possible implementation, the buffer includes an arc-shaped spring sheet connected to an ear plate of the sealing plate, and the sidewall of the spring groove has grooves evenly arranged from top to bottom.

[0017] In one possible implementation, both the sealing plate one and the sealing plate two are provided with inclined discharge ports. An extension plate one is installed on the lower end face of the sealing plate one, and the discharge port on the sealing plate one extends to the extension plate one. Thin plates that are in close contact with the side walls of the sealing plate one and the sealing plate two are installed between the upper and lower discharge hoppers and on the lower outer wall of the discharge hopper located on the lower side.

[0018] In one possible implementation, the discharge mechanism includes a connecting cylinder installed between the upper and lower discharge hoppers and below the lower discharge hopper. The connecting cylinder is connected to the inclined end of the discharge hopper. A flip plate that seals the top of the connecting cylinder is rotatably connected inside the connecting cylinder. A top rod is horizontally slidably connected to the connecting cylinder. The top rod supports the lower end of the flip plate. The top rod is horizontally slidably connected to the box body. An electric slider two that drives the two top rods to move simultaneously is provided on the box body.

[0019] In one possible implementation, the pushing vibration mechanism includes two sets of upper and lower push rods hinged to the discharge port by a torsion spring rod. Each set of push rods consists of push rods symmetrically arranged along the width direction of the discharge port. The upper and lower sets of push rods are located below the outlets of vibrating screen one and vibrating screen two, respectively. A push-pull rod is fixedly installed at the end of the push rod away from the tilting plate. The end of the push-pull rod away from the push rod is slidably sleeved on the push rod and is used to drive the push rod to rotate and contact the corresponding discharge hopper.

[0020] The above-mentioned one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. The automatic material batching structure for the production of neodymium iron boron sheets designed in the present invention, through the cooperation of the discharge mechanism, the end sealing mechanism and the pushing vibration mechanism, realizes the process of opening the upper discharge hopper first and closing the lower discharge hopper in real time according to the weighing of the weighbridge below the material cylinder when the raw material is weighed, and then closing the upper discharge hopper while opening the lower discharge hopper, and closing both upper and lower discharge hoppers in sequence. This prevents the raw material in the material cylinder from exceeding the required counterweight after the weight of the raw material in the material cylinder has reached the corresponding value, because there is still material in the discharge hopper falling into the material cylinder, causing the raw material in the material cylinder to be inaccurate due to the lack of required counterweight. This greatly improves the accuracy of the automatic counterweighting of raw materials.

[0021] 2. This invention utilizes a combination of a discharge mechanism, an end-sealing mechanism, and a pushing vibration mechanism. The two discharge hoppers, through the cooperation of the discharge mechanism and the pushing vibration mechanism, respectively contact the vibrating screen one and the vibrating screen two, and open the discharge mechanism to discharge the residual material as the vibrating screen one and the vibrating screen two vibrate. This achieves integrated vibration discharge of the residual material in the vibrating screen one, the vibrating screen two, and the two discharge hoppers, greatly improving the convenience and efficiency of residual material discharge. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0024] Figure 2 This is the first sectional view of the present invention.

[0025] Figure 3 yes Figure 2 A magnified view of part A.

[0026] Figure 4 yes Figure 2 Main sectional view.

[0027] Figure 5 yes Figure 4 A magnified view of part B.

[0028] Figure 6 This is a cross-sectional structural schematic diagram of the end-sealing mechanism of the present invention.

[0029] Figure 7 yes Figure 6 A magnified view of part C.

[0030] Figure 8 yes Figure 6 A magnified view of part D.

[0031] Reference numerals in the attached diagram: 1. Box body; 2. Vibrating screen one; 3. Vibrating screen two; 4. Roller conveyor; 5. Discharge port; 6. Discharge hopper; 7. Discharge mechanism; 70. Connecting cylinder; 71. Tilting plate; 72. Top rod; 8. End sealing mechanism; 80. Fixed support plate; 81. Connecting rod; 82. Sealing plate one; 820. Discharge port; 821. Extension plate one; 823. Thin plate; 83. Sealing plate two; 84. Elastic buckle lock; 840. Spring groove; 841. Compression spring; 842. Partition plate; 860. Return spring; 861. Locking block; 862. Top push plate; 863. Locking groove; 864. L-shaped abutment rod; 865. Arc-shaped spring sheet; 9. Pushing vibration mechanism; 90. Abutment rod; 91. Push-pull rod; 10. Weighbridge; 11. Material cylinder; 12. Discharge adjustment mechanism. Detailed Implementation

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] See Figure 1 and Figure 2 An automatic raw material batching structure for the production of NdFeB thin sheets includes a housing 1, a discharge adjustment mechanism 12, two discharge hoppers 6, a discharge mechanism 7, an end sealing mechanism 8, and a pushing vibration mechanism 9. The housing 1 is equipped with a vibrating screen 1 2 and a vibrating screen 2 3. The vibrating screen 1 2 is equipped with a circular screen to filter small materials and convey large materials. The vibrating screen 2 3 is used to convey small materials to supplement the material shortage. A weighbridge 10 is provided on one side of the housing 1. The weighbridge 10 is equipped with a roller conveyor 4 for conveying the material cylinder 11. The side of the housing 1 near the roller conveyor 4 is equipped with a discharge port 5.

[0035] Vibrating screen 12 and vibrating screen 23 are both existing equipment used for vibrating conveying of large and small materials.

[0036] See Figure 1 The discharge adjustment mechanism 12 is installed on the vibrating screen 2 and is used to adjust the size of the outlet of the vibrating screen 2. The discharge adjustment mechanism 12 includes a lifting baffle that slides up and down and an electric slider 1 (which is prior art and is not shown in the figure) that controls the lifting baffle.

[0037] See Figure 1 and Figure 2The two discharge hoppers 6 are installed on the discharge port 5, and the two discharge hoppers 6 are respectively installed below the outlet of the vibrating screen 1 2 and the vibrating screen 2 3; the discharge mechanism 7 is located at the outlet of the two discharge hoppers 6.

[0038] See Figure 1 , Figure 4 and Figure 6 The end sealing mechanism 8 is installed on the side wall of the box 1. The end sealing mechanism 8 includes two fixed support plates 80. The fixed support plates 80 are connected to the box 1 through connecting rods 81. The two fixed support plates 80 are slidably connected vertically to a first sealing plate 82 and a second sealing plate 83. The first sealing plate 82 and the second sealing plate 83 are connected by an elastic locking part 84. The box 1 is also provided with a driving part for driving the second sealing plate 83. When the driving part drives the second sealing plate 83, the second sealing plate 83 cooperates with the first sealing plate 82 and the elastic locking part 84. During weighing and discharging, the upper discharge hopper 6 is opened first and then closed, while the lower discharge hopper 6 is opened and closed simultaneously.

[0039] It should be noted that the weighbridge 10 is equipped with a weighing sensor that controls the opening and closing of vibrating screens 2 and 3, as well as the drive unit. The weighing sensor is existing technology. The specific process of controlling the opening and closing of vibrating screens 2 and 3 and the drive unit is not detailed here, but the execution result is as follows: When the total amount of large material in the material cylinder 11 reaches the target, the weighing sensor controls vibrating screen 2 to stop working, and simultaneously controls the drive unit and vibrating screen 3 to work. The drive unit drives the sealing plate 83 to move upwards quickly to a specified distance. The sealing plate 83, through the elastic locking part 84, pushes the sealing plate 82 upwards to block the upper discharge hopper 6 and open the lower discharge hopper 6. At the same time, vibrating screen 3 vibrates to convey small material from... The material is discharged from the lower hopper 6. When the total amount of material in the cylinder 11 is reached, the weighing sensor controls the vibrating screen 3 to stop vibrating. At the same time, it controls the drive unit to drive the sealing plate 83 to continue moving upward. The sealing plate 83 moves upward through the elastic locking part 84 and abuts against the bottom of the sealing plate 82. Both the upper and lower hoppers 6 are closed. At this time, the weighing sensor is turned off at the same time. Then the roller conveyor 4 transports the cylinder 11 and removes it. After that, the next cylinder 11 is placed. When the next cylinder 11 reaches the designated position, the weighing sensor turns on and weighs the cylinder 11 through the weighbridge 10. Based on the weight of the cylinder 11, the weighing sensor controls the drive unit to drive the sealing plate 83 to move the sealing plate 82 downward through the elastic locking part 84 to reset it.

[0040] During the initial batching process, the upper discharge hopper 6 opens, and the vibrating screen 2 vibrates to filter small materials and convey large materials, causing the large materials to fall into the material cylinder 11. During the material falling process, the weighbridge 10 below the roller conveyor 4 weighs the materials in real time. When the total amount of large materials in the material cylinder 11 reaches the target, the weighing sensor controls the vibrating screen 2 to stop working. At the same time, the drive unit drives the sealing plate 83 to move upward quickly to the specified distance. The sealing plate 83 pushes the sealing plate 82 upward through the elastic locking part 84 to seal the upper discharge hopper 6 and open the lower discharge hopper 6. At the same time, the vibrating screen 3 vibrates to convey small materials, which are discharged from the lower discharge hopper 6. This prevents the large materials in the upper discharge hopper 6 from continuing to fall into the material cylinder 11 after the vibrating screen 2 stops vibrating, due to the tilt of the discharge hopper 6 and the weight of the large materials themselves. This would result in a large amount of large materials in the material cylinder 11, causing inaccurate material weighting.

[0041] During the material discharge process, the weighbridge 10 below the roller conveyor 4 weighs the material in real time. When the total amount of material in the cylinder 11 is reached, the weighing sensor controls the drive unit to drive the second sealing plate 83 to continue moving upward, and the second vibrating screen 3 stops vibrating. At this time, the first sealing plate 82 no longer moves, and the second sealing plate 83 moves upward through the elastic locking part 84 and abuts against the bottom of the first sealing plate 82. Both the upper and lower discharge hoppers 6 are closed. At this time, the weighing sensor is turned off at the same time. Then the roller conveyor 4 transports the cylinder 11 and removes it. After that, the next cylinder 11 is placed. The first sealing plate 82 and the second sealing plate 83 are fastened by the elastic locking part 84. The roller conveyor 4 transports the cylinder 11 to the next process.

[0042] The above process achieves precise counterweighting during the automatic batching of raw materials for NdFeB sheet production. This avoids the problem that during the weighing process, even if the weight in the material cylinder 11 has reached the specified weight, the material in the discharge hopper 6 continues to fall downwards due to its own weight, resulting in an error in the material weighing and affecting the overall accuracy of the raw material ratio.

[0043] When the next material cylinder 11 reaches the designated position, the weighing sensor is activated and the material cylinder 11 is weighed by the weighbridge 10. Based on the weight of the material cylinder 11, the weighing sensor controls the drive unit to drive the sealing plate 2 83 to move the sealing plate 1 82 downward through the elastic locking part 84. During this process, the discharge hopper 6 located on the lower side is always blocked until the discharge hopper 6 located on the upper side is opened, and the above batching steps are repeated.

[0044] See Figure 1 and Figure 2 The pushing vibration mechanism 9 is installed between the two discharge hoppers 6 and the box body 1. The two discharge hoppers 6 cooperate with the top rod 72 through the discharge mechanism 7 and then come into contact with the vibrating screen 1 2 and the vibrating screen 2 3. The discharge mechanism 7 is opened and the remaining material is discharged as the vibrating screen 1 2 and the vibrating screen 2 3 vibrate.

[0045] When it is necessary to change materials, the two discharge hoppers 6 cooperate with the discharge mechanism 7 and the pushing vibration mechanism 9 to abut against the vibrating screen 1 2 and the vibrating screen 2 3, and open the discharge mechanism 7 to discharge the remaining material as the vibrating screen 1 2 and the vibrating screen 2 3 vibrate, thereby realizing the integrated vibration discharge of the remaining material in the vibrating screen 1 2, the vibrating screen 2 3 and the two discharge hoppers 6, which greatly improves the convenience and efficiency of the discharge of the remaining material.

[0046] See Figure 1 The driving unit includes a driving source (such as an electric slider, not shown in the figure) installed on the fixed support plate 80 for driving the sealing plate 83 to slide up and down.

[0047] See Figure 1 , Figure 6 and Figure 8 The elastic locking part 84 includes two fixed support plates 80 with spring grooves 840 on their opposite sides. Both the sealing plate 1 82 and the sealing plate 2 83 are equipped with ear plates that are slidably connected to the spring grooves 840. A compression spring 841 is installed between the two ear plates that are opposite each other. The top of the ear plate of the sealing plate 1 82 and both sides of the lower end face of the sealing plate 1 82 along its width direction are equipped with partition plates 842 to close the spring grooves 840. The partition plates 842 are used to prevent discharged materials from entering the spring grooves 840. The top of the partition plates 842 on the ear plates of the sealing plate 1 82 slides through the spring grooves 840. The side wall of the sealing plate 2 83 is provided with a connecting groove that corresponds to and slidably engages with the partition plates 842 on the sealing plate 1 82. A snap-fit ​​assembly is installed between the sealing plate 1 82 and the sealing plate 2 83.

[0048] When the total amount of large material in the material cylinder 11 reaches the target, the weighing sensor controls the vibrating screen 2 to stop working. At the same time, the drive unit drives the sealing plate 83 to move upward quickly to the specified distance. When the sealing plate 83 moves upward, it drives the sealing plate 82 to move upward through the compression spring 841. The sealing plate 82 blocks the outlet of the discharge hopper 6 that discharges large material. At this time, the outlet of the discharge port 5 located on the lower side is located between the sealing plate 82 and the sealing plate 83. Therefore, the outlet of the discharge port 5 located on the lower side is in the open state. At this time, the ear plate on the sealing plate 82 abuts against the top of the spring groove 840. The top of the sealing plate 83 is aligned with the outlet of the discharge hopper 6 located on the lower side. The vibrating screen 3 vibrates to transport small material into the discharge hopper 6 located on the lower side and to transport small material to the material cylinder 11 to replenish the material shortage.

[0049] When the total amount of material in the material cylinder 11 is reached, the weighing sensor control drive unit drives the sealing plate 2 83 to move upward again, and the vibrating screen 2 3 stops vibrating. At this time, the ear plate on the ear plate of the sealing plate 1 82 abuts against the top of the spring groove 840, so the sealing plate 1 82 no longer moves. When the sealing plate 2 83 moves upward, the compression spring 841 contracts, and the sealing plate 2 83 blocks the outlet of the discharge hopper 6 located on the lower side until the sealing plate 2 83 and the sealing plate 1 82 abut against each other. At this time, the snap-fit ​​assembly connects the sealing plate 1 82 and the sealing plate 2 83, so that when the sealing plate 2 83 moves downward, the sealing plate 1 82 and the sealing plate 2 83 are in close contact and move downward, ensuring that the outlet of the discharge hopper 6 located on the lower side is always kept in a blocked state, avoiding the problem of inaccurate material ratio caused by the discharge of small materials in the discharge hopper 6 first.

[0050] See Figure 1 , Figure 6 and Figure 8 The snap-fit ​​assembly includes a sealing plate 82 with storage slots on both sides along its width. The storage slots are located on the lower side of the sealing plate 82. A snap block 861 is installed in the storage slot via a reset spring 860. The side of the snap block 861 away from the reset spring 860 is inclined. A push plate 862 is installed on the ear plate connected to the sealing plate 83. The top of the push plate 862 is inclined, and a snap groove 863 that cooperates with the snap block 861 is opened on the side near the sealing plate 83. An unlocking component is provided at the bottom of the spring groove 840. A buffer component is installed between the ear plate connected to the sealing plate 82 and the spring groove 840.

[0051] When the total amount of material in the cylinder 11 is reached, the sealing plate 2 83 moves upward and the compression spring 841 contracts. When the sealing plate 2 83 approaches the sealing plate 1 82, the inclined surface of the push plate 862 contacts the inclined surface of the locking block 861 and pushes the locking block 861 to squeeze the reset spring 860. The locking block 861 moves towards the receiving groove until the end of the locking block 861 is flush with the side wall of the sealing plate 1 82. The push plate 862 continues to move. When the locking groove 863 is aligned with the locking block 861, the locking block 861 is inserted into the locking groove 863 under the elastic force of the reset spring 860. At the same time, the sealing plate 1 82 and the sealing plate 2 83 are tightly attached and locked together.

[0052] When the next material cylinder 11 reaches the designated position, the drive unit drives the second sealing plate 83 to move down. The first sealing plate 82 moves down with the second sealing plate 83 through the engagement of the locking block 861 and the locking groove 863, thereby realizing the function of first opening the upper discharge hopper 6 to discharge large materials, while keeping the outlet of the lower discharge hopper 6 blocked at all times.

[0053] When the ear plate on the second sealing plate 83 contacts the bottom of the spring groove 840, the unlocking component pushes the locking block 861 out of the groove 863, and the first sealing plate 82 moves upward under the elastic force of the compression spring 841 to reset, so that the top of the first sealing plate 82 is aligned with the outlet of the upper discharge hopper 6, so that the above steps can be repeated.

[0054] See Figure 8 The unlocking component includes an L-shaped abutment 864 installed at the bottom of the spring groove 840, a through groove is provided on the push plate 862 and the ear plate connected to it, the through groove passes through the slot 863, the horizontal section of the L-shaped abutment 864 slides into the through groove, and a ball is rolledly connected to the end of the horizontal section of the L-shaped abutment 864.

[0055] When the ear plate on the sealing plate 83 approaches the bottom of the spring groove 840, the ball on the L-shaped abutment 864 contacts the inclined surface of the locking block 861 and pushes the locking block 861 into the receiving groove until the locking block 861 disengages from the locking groove 863, thereby realizing the unlocking function.

[0056] See Figure 7 The buffer includes an arc-shaped spring piece 865 connected to the ear plate of the sealing plate 82. The side wall of the spring groove 840 is provided with grooves evenly arranged from top to bottom. The arc-shaped spring piece 865 is engaged with multiple grooves to slow down the upward movement speed of the sealing plate 82.

[0057] See Figure 1 , Figure 2 and Figure 4 Both the sealing plate 1 82 and the sealing plate 2 83 are provided with inclined discharge ports 820. An extension plate 1 821 is installed on the lower end face of the sealing plate 1 82, and the discharge port 820 on the sealing plate 1 82 extends to the extension plate 1 821. A thin plate 823 is installed between the upper and lower discharge hoppers 6 and on the lower outer wall of the discharge hopper 6, which is in close contact with the side walls of the sealing plate 1 82 and the sealing plate 2 83. The thin plate 823 is used to prevent material from flying into the space between the two discharge hoppers 6, so that the material in the two discharge hoppers 6 can fall smoothly into the material cylinder 11.

[0058] See Figure 2 , Figure 3 , Figure 4 and Figure 5 The discharge mechanism 7 includes a connecting cylinder 70 installed between the upper and lower discharge hoppers 6 and below the lower discharge hopper 6. The connecting cylinder 70 is connected to the inclined end of the discharge hopper 6. A flip plate 71 is rotatably connected inside the connecting cylinder 70 to seal its top. A top rod 72 is horizontally slidably connected to the connecting cylinder 70. The top rod 72 supports the lower end of the flip plate 71. The top rod 72 is horizontally slidably connected to the box body 1. The box body 1 is provided with an electric slider two (existing technology, not shown in the figure) that drives the two top rods 72 to move simultaneously.

[0059] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The pushing vibration mechanism 9 includes two sets of upper and lower push rods 90 hinged to the discharge port 5 by a torsion spring rod. Each set of push rods 90 consists of push rods 90 symmetrically arranged along the width direction of the discharge port 5. The upper and lower sets of push rods 90 are located below the outlets of the vibrating screen 1 2 and the vibrating screen 2 3, respectively. A push-pull rod 91 is fixedly installed at the end of the top rod 72 away from the tilting plate 71. The end of the push-pull rod 91 away from the top rod 72 is slidably sleeved on the push rod 90 and is used to drive the push rod 90 to rotate and contact the corresponding discharge hopper 6.

[0060] When it is necessary to change materials for weighing and remove residual material, the electric slider 2 drives both push rods 72 to move away from the connecting cylinder 70. During the movement, the tilting plate 71 tilts along the hinge under its own weight, thereby opening the top of the connecting cylinder 70. This allows both large and small materials in the upper and lower discharge hoppers 6 to be discharged from the lower connecting cylinder 70. While the push rods 72 move, they drive the push-pull rod 91 to rotate. The push-pull rod 91 pushes the abutment rod 90 to rotate, and the abutment rod 90 rotates and abuts against the corresponding discharge hopper 6. When the vibrating screen 1 2 and vibrating screen 2 3 vibrate, they convey large and small materials to the corresponding discharge hoppers 6. During the vibration, the vibrating screen 1 2 and vibrating screen 2 3 transmit the vibration force to the upper and lower discharge hoppers 6 through the abutment rod 90, so that the upper and lower discharge hoppers 6 vibrate with the vibrating screen 1 2 and vibrating screen 2 3, so that the material can be discharged quickly.

[0061] It should be noted that the vibration of vibrating screen 12 and vibrating screen 23 is controlled by a separate control switch to turn them on and off.

[0062] See Figures 1-8In specific operation, during the initial batching, the upper discharge hopper 6 is opened, and the vibrating screen 2 vibrates to filter small materials and convey large materials, causing the large materials to fall into the material cylinder 11. During the material falling process, the weighbridge 10 below the roller conveyor 4 weighs the materials in real time. When the total amount of large materials in the material cylinder 11 reaches the target, the weighing sensor controls the vibrating screen 2 to stop working. At the same time, the drive unit drives the sealing plate 83 to move upward quickly to the specified distance. The sealing plate 83 pushes the sealing plate 82 upward through the elastic locking part 84 to seal the upper discharge hopper 6 and open the lower discharge hopper 6. At the same time, the vibrating screen 3 vibrates to convey small materials, which are discharged from the lower discharge hopper 6. This prevents the large materials in the upper discharge hopper 6 from continuing to fall into the material cylinder 11 after the vibrating screen stops vibrating, due to the tilt of the discharge hopper 6 and the weight of the large materials themselves, resulting in a large amount of large materials in the material cylinder 11 and causing inaccurate material weighting.

[0063] During the material discharge process, the weighbridge 10 below the roller conveyor 4 weighs the material in real time. When the total amount of material in the cylinder 11 is reached, the weighing sensor controls the drive unit to drive the second sealing plate 83 to continue moving upward, and the second vibrating screen 3 stops vibrating. At this time, the first sealing plate 82 no longer moves, and the second sealing plate 83 moves upward through the elastic locking part 84 and abuts against the bottom of the first sealing plate 82. Both the upper and lower discharge hoppers 6 are closed. At this time, the weighing sensor is turned off at the same time. Then the roller conveyor 4 transports and removes the cylinder 11, and then places the next cylinder 11. The first sealing plate 82 and the second sealing plate 83 are fastened by the elastic locking part 84, and the roller conveyor 4 transports the cylinder 11.

[0064] When the next material cylinder 11 reaches the designated position, the weighing sensor is activated and the material cylinder 11 is weighed by the weighbridge 10. Based on the weight of the material cylinder 11, the weighing sensor controls the drive unit to drive the sealing plate 2 83 to move the sealing plate 1 82 downward through the elastic locking part 84. During this process, the discharge hopper 6 located on the lower side is always blocked until the discharge hopper 6 located on the upper side is opened, and the above batching steps are repeated.

[0065] When it is necessary to change materials, the two discharge hoppers 6 cooperate with the discharge mechanism 7 and the top rod 72 to abut against the vibrating screen 1 2 and vibrating screen 2 3, and open the discharge mechanism 7 to discharge the residual material as the vibrating screen 1 2 and vibrating screen 2 3 vibrate, thereby realizing the integrated vibration discharge of the residual material in the vibrating screen 1 2, vibrating screen 2 3 and the two discharge hoppers 6, which greatly improves the convenience and efficiency of residual material discharge.

[0066] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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.

[0067] Furthermore, the terms "first," "second," "number one," and "number two" 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," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic raw material batching structure for the production of NdFeB thin sheets, comprising a housing, a vibrating screen I and a vibrating screen II disposed within the housing, a roller conveyor disposed on one side of the housing, and a discharge port disposed on the side of the housing near the roller conveyor, characterized in that: Two discharge hoppers are located at the discharge port, and are respectively located below the outlets of vibrating screen one and vibrating screen two; The material discharge mechanism is located at the outlet of both discharge hoppers; The end sealing mechanism is located on the box body and includes two fixed support plates. The fixed support plates are connected to the box body through connecting rods. A sealing plate one and a sealing plate two are slidably connected between the two fixed support plates. The sealing plate one and the sealing plate two are connected by an elastic locking part. The box body is also provided with a driving part for driving the sealing plate two. When the driving part drives the sealing plate two, the sealing plate two cooperates with the sealing plate one and the elastic locking part. During the material discharge and weighing process, the upper discharge hopper is opened first and then closed, while the lower discharge hopper is opened and closed at the same time. The pushing vibration mechanism is located between the two discharge hoppers and the box body. The two discharge hoppers cooperate with the top rod through the discharge mechanism to come into contact with the vibrating screen one and the vibrating screen two, and open the discharge mechanism to discharge the remaining material as the vibrating screen one and the vibrating screen two vibrate. The discharge mechanism includes a connecting cylinder installed between the upper and lower discharge hoppers and below the lower discharge hopper. The connecting cylinder is connected to the inclined end of the discharge hopper, and a flip plate is rotatably connected inside the connecting cylinder to seal its top. The pushing vibration mechanism includes two sets of upper and lower push rods hinged together by a torsion spring rod below the discharge port. Each set of push rods consists of push rods symmetrically arranged along the width direction of the discharge port. The upper and lower sets of push rods are located below the outlets of vibrating screen one and vibrating screen two, respectively. A push-pull rod is fixedly installed at the end of the push rod away from the tilting plate. The end of the push-pull rod away from the push rod is slidably sleeved on the push rod and is used to drive the push rod to rotate and contact the corresponding discharge hopper.

2. The automatic raw material batching structure for the production of NdFeB thin films according to claim 1, characterized in that: A top rod is horizontally slidably connected to the connecting cylinder. The top rod supports the lower end of the flip plate. The top rod is horizontally slidably connected to the box body. The box body is equipped with an electric slider that drives the two top rods to move simultaneously.

3. The automatic raw material batching structure for the production of NdFeB thin films according to claim 1, characterized in that: The elastic locking part includes two fixed support plates with spring grooves on their opposite surfaces. Both sealing plate one and sealing plate two are equipped with ear plates that are slidably connected to the spring grooves. A compression spring is installed between the two ear plates that are opposite each other. Partitions that close the spring grooves are installed on the top of the ear plate of sealing plate one and on both sides of the lower end face of sealing plate one along its width direction. The partitions are used to prevent discharged materials from entering the spring groove. The top of the partition on the ear plate of sealing plate one slides through the spring groove. The side wall of sealing plate two is provided with a connecting groove that corresponds to and slidably engages with the partition on sealing plate one. A snap-fit ​​assembly is installed between sealing plate one and sealing plate two.

4. The automatic raw material batching structure for the production of NdFeB thin films according to claim 3, characterized in that: The snap-fit ​​assembly includes a sealing plate 1 with storage slots on both sides arranged along its width direction. The storage slots are located on the lower side of the sealing plate 1. A snap-fit ​​block is installed in the storage slot via a return spring. The side of the snap-fit ​​block away from the return spring is inclined. A push plate is installed on the ear plate connected to the sealing plate 2. The top of the push plate is inclined and a snap-fit ​​groove that mates with the snap-fit ​​block is opened on the side near the sealing plate 2. An unlocking element is provided at the bottom of the spring groove. A buffer element is installed between the ear plate connected to the sealing plate 1 and the spring groove.

5. The automatic raw material batching structure for the production of NdFeB thin films according to claim 1, characterized in that: Both the sealing plate one and the sealing plate two are provided with inclined discharge ports. An extension plate one is installed on the lower end face of the sealing plate one. The discharge port on the sealing plate one extends to the extension plate one. Thin plates that are in close contact with the side walls of the sealing plate one and the sealing plate two are installed between the upper and lower discharge hoppers and on the lower outer wall of the discharge hopper located on the lower side.

6. The automatic raw material batching structure for the production of NdFeB thin films according to claim 4, characterized in that: The unlocking component includes an L-shaped abutment rod installed at the bottom of the spring groove, a through groove formed on the push plate and the ear plate connected to it, the through groove passing through the slot, the horizontal section of the L-shaped abutment rod slidingly entering the through groove, and a ball bearing rollingly connected to the end of the horizontal section of the L-shaped abutment rod.

7. The automatic raw material batching structure for the production of NdFeB thin films according to claim 4, characterized in that: The buffer includes an arc-shaped spring piece connected to an ear plate of the sealing plate, and the side wall of the spring groove has grooves evenly arranged from top to bottom.

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